HTC needs to ramp up the ill effects a bit. Things like stick stirring, floppy-fish evasives, etc, need to be curtailed. Most planes couldn't fly upside down for more than 15 seconds before the engine was starved of oil (inline or radial, both suffered). In this game the most popular dweeby evasive is to roll inverted and push your nose up to climb while inverted, rolling left and right (while pushing the stick foward still) and/or other combinations.
In real life that plane would have plumetted downwards, and when they do it 5 feet off the deck (in AH I mean) it's even more ludicrous.
One guy in a 190 did it so long yesterday while I was sitting on his six he must have locked his controls up, and he couldn't recover (he crashed, as he was -- naturally -- on the deck), but 5 others did it with no ill effect in the same sortie.
IMO needs stricter airflow disruption and drag, loss of lift, and/or pilot fatigue and needs to kick in sooner when folks do that.
Perhaps anytime you jerk the stick from one extreme to the other your pilot gets tired, like the blackout system. You ride the black for a bit, and you're much more susceptible to a perma-blackout next time. Something like that, where the pilot gets tired when in neg-G, or when rolling repeatedly back and forth to both extremes while kicking rudder and pushing up or down. You only get "X" rapid moves in a short time frame, after which you become disoriented and black out or whatever.