Not impossible, but not sure if it is worth the effort. At the end of the day, if you have good igniters, good technique and a relay launcher that has a good battery, your success will be pretty high, IMO.
Personally, when launching clusters at a club (or with your own high current controller), the igniters are the weak link. Hooking everything up and going back to to launch control to only find it isn't green is better than red, but it would be better to have confidence in the cluster launch before you walk away from the rod.
Back when Q2G2's were easily available, I tossed all the Estes igniters and just used those. 100% success with a 7 motor cluster, multiple flights. The 'new' clear Estes igniters are less reliable than Q2G2's for any launch, IMO. I suspect everyone would agree.
Now, when I launch clusters, they are home built igniters. If I could get Q2G2's for $1 each, that's what I would use, but that isn't the case.
Now that my diatribe is done, you absolutely can create a controller that gives a green/red with a specified igniter combination. Since the igniters are run in parallel, you can figure out the resistance that is good. A short or open circuit would change that answer. Having said that, if you design and build a controller that is good for 3 Estes igniters in parallel, it won't be good for 2, 4, 7 (etc.) Estes igniters in parallel unless you do something programmable. Heaven forbid you get your hands on some Q2G2's, build your own, etc.
You can use a DMM to check each igniter and do the math for the parallel igniters and be fairly certain it will work as well. If you see something that is outside of logical parameters, you bail out and do it over. A go/no-go solution would be tedious unless it was just for a specific case or was programmable, IMO.
Sandy.