Dassault is a delta specialist... you can talk all the theory you want, please refer the the videos posted in this thread, where you can see for yourself a real 2000 at VERY HIGH AOA, very slow speed, able to sustain lift without the need of burners, AND recover the energy very easily while maintaining a high Alpha and using the post combustion !
Why don't want an over performing plane, just an FM reflecting the reality... even if it costs to the drivers of the other modules, which I suspect is the problem here !