We were told the sims do not have the logarithims to be able to accurately reflect spin and OCF.
There's kind of the same problem in 60S land...there are several really bad EPs we can't practice in the a/c (stuck pedals, loss of T/R drive, etc) but the sims* don't do an accurate job modeling the EP to permit good training.
*and by sims I mean OFTs, so more buttonology trainers than airwork trainers.