The time-line of the series, this episode is set in 2013. Tasty says there's been 8 years of Obama. But there would have only been 5 years of Obama in power when this episode is set.
At about 56 or 57 minutes in when Bayley is on Poussey's back the female CO pulls Crazy Eyes off of him, but he still continues to fight and struggle even though she's not touching him.
It makes no sense for Caputo not to punish Piscatella's open insubordination by firing him on the spot.