Once again, if you have not noticed a decay in maneuverability at low airspeeds with all the flaps hanging out in AHII, then you have not flown the game.
It also appears that thorsim is automatically assuming that everyone that uses flaps just leave them out regardless of the consequences. While that may be true of newer and inexperienced players, you will rarely see a veteran or more experienced player using flaps in such a way.
Speaking only for myself, my flaps are only deployed when needed and as soon as I'm done, I raise them and never leave them hanging out. You will never see my flying with full flaps left out, for instance if I need full flaps in a rolling scissors situation, I deploy them for when I need them and then immediately rectract them afterwards. You'll find others that fly 'flap dependent' planes using flaps the same way.
ack-ack