I once had a student do the following: Slowed down to up speed ,pulled the nose gently up, promptly rolled towards 60 plus deg,THEN applied full rudder!
YeeeeeHaaaa, did she ever roll!!
On our back before I could say DONT!
It doesn't prove anything because simulation is programmed on the data package given by the manufacturer. If you do some stunts which the test pilot hasn't, it may be good fun but it has no authenticity. That is not necessarily what will happen in real aircraft. From training point it is not only a waste of time it is also negative training and the conclusions are dangerous. The present simulators are not realistic of even deep stall which pilots have induced forget about other nonsense.
Now coming to the OP. When you don't apply rudder as in OEI in air or while removing the offset in strong crosswind landing if you observe on the flt ctl. page the spoilers deploy to prevent roll.