Of course. As I mentioned in the CoP thread, this was just a start with CFD, not the final answer. I spent 30 years doing automotive CFD. I set up this model with methods used in industry. Yes, URANS sucks. DDES is a good choice for transient accuracy, while RKE and k-omega sst are good for steady-state. We would do a lot of what-if studies quickly in steady state, and then final confirmations with DDES.
While the Cfd workbench makes the setup easy, the user still needs to understand how to properly run a CFD model. I am just thrilled that this model meshed, ran, and converged without blowing up. On the first try.
Remember AeroCFD from the AeroRocket guy? That was limited to 2D, symmetric, Euler flows, I think. Other CFD discussions on the forum usually involved somebody messing around at their workplace with spendy commercial software. FreeCAD is full 3D Navier Stokes simulations that seemingly run robustly on a home computer. That puts a powerful tool within reach of hobbyists. See the readme for a list of capabilities:
https://github.com/jaheyns/CfdOF