I am using the latest tuner and do still see some fumbles. Jeremy Langford fumbled in my last game although the previous 2 games I didn't see a fumble and saw 4 in the game before that so it's a bit hit or miss. These are ai forced fumbles either by my teammates or the ai opponent.
The ai still uses its special moves. Watch out if someone like shady McCoy gets one on one with a lb or if a cb tries to tackle Blount. The key to that is the ai qba at 50. They play a lot smarter.