Haven't checked out the link, but I wonder... To get back to the launch area is kinda like sailing upwind, isn't it? I never did figure out how tacking worked; but long ages ago I was taught that whatever heading you set in an aircraft, you must take the wind speed and direction and add them vectorially to get your actual ground heading.
Sailboats have to tack, moving diagonally back and forth in the water, because sailboats can not sail straight into the wind.
Once a model is in the air, forget about the ground as far as affecting what is in the air. The wind direction and velocity is what affects it. Once a chute deploys, from the model's perspective, it is in CALM air, that just happens to have ground moving under it at "X" velocity and "Y" direction (X being windspeed, and Y being direction). Note, for simplicity I'm not counting gusting winds, but a steady wind. People flying in a hot air balloon in a 10mph wind feel like they are in calm air, as they watch the Earth move underneath them at 10 mph.
For a plane pilot trying to navigate from point A to point B using a compass and knowing the windspeed and wind velocity, as well as the planes speed, then yes they need to calculate the compass bearing to use to correct for the wind vector. But for a relatively "dumb" GPS system, it is simply going to steer the model to the designated landing spot (which for R/C multicopters and R/C planes with Return To Home (RTH) GPS, is the same spot where the model was when it was turned on and got GPS lock). It knows nothing of windspeed or wind vector. It just steers straight for the GPS spot. Of course the wind will try to mess with that. For multicopters, they can handle it and fly straight anyway. An R/C plane, it gets trickier since an R/C plane can't "crab" into a crosswind very well, at least not one with a simple autopilot GPS system. So it'll get pushed a bit to the side.
Say there is a strong wind blowing to the East, while the model is for whatever reason 1000 feet north of the landing spot and trying to fly straight due south. The wind will try to push the model to the East, bit by bit. And so the GPS will end up needing to steer a bit to the west as it is flying south. So the flht path might not be straight , but sorta curved. Worst-case the model flght path would curve so much east that eventually it is say 500 feet due east of the landing site, and the GPS is then pointing it directly to the west, and the modle slowly flies westward fighting the wind. Now, one could quibble aobut that with an R/C plane, but pretty much that's what a steerable parachute may need to do. Because gliding sterrable parachutes do not have a really fast glide, and if there is a lot of wind then the chute has to do a lot to fight that crosswind. So this is why I expect a gliding parachute might drift in a strong crosswind until it has curved its path of course enough to approach more straight into the wind.
I will say I've flown R/C gliders in a lot of sucky wind. Well, winds that BLOW. Sometimes, in say a 14 mph wind, and the glide speed is 15 mph. Takes a lot of careful piloting to keep the nose pointed directly into the wind, to fly "forward" at 1 mph. If I tried to "tack", letting it get diagonal to the wind, it would quickly get farther and farther downwind. The good thing with an R/C glider that has elevator control, is that it can be made to glide faster by giving down trim to put the nose down a bit, to pick up speed, at the cost of descending quicker. But that can be well worth it to get the glider to come back to you. Bad thing about steerable chutes is they can't do that, no way to increase their forward "glide" speed (that I am aware of anyway). So it can be very important to know what the glide speed is for a steerable chute, and simply not fly when the wind AT ALTITUDE is likely too close to the glide speed of the steerable chute (note that wind a few hundred feet up is often a lot stronger than at ground level). Oh, I've also flown R/C gliders in wind that's faster than the normal glide speed, so the only way to not go downwind was to use enough downtrim to have more glide velocity than the windspeed (those situations were important contests, or team practices. Otherwise I'd never have flown in winds like that. It's weird to land a "glider" vertically, with glidespeed = windspeed).
And another joker in the deck in that regard is how "stable" can a steerable chute system be, given the dynamics of contorl, oscillations, and the rocket swinging underneath. What I mean is, can it fly steady straight intothe wind, or not. It may be able to "average" flying into the wind, but if it is swaying left and right, then the more it sways away form straight into the wind, the less forward progress it makes, and it may end up drifting downwind as it zig-zags back and forth (depends on the windspeed, gliding chute glide speed, and the losses from zig-zagging instead of being steady straight into the wind).
All that said, I really like the idea of it. The videos I've seen of the Apogee system being tested, is impressive, And if Apogee was not already working on it, it might have been a project I'd look into doing.
So I'm not attmepting to be negative about it. Just that I expect there to be some practical limitations when comes to fliers expecting a GPS Chute system to bring their model back REGARDLESS of the wind.