Jason,
I agree that all calls were PI, but the defender is hand checking the entire time as well, where is the illegal contact? Also, on the first one in the endzone, there was a lot of acting on the part of the DB, unless Alshon has super human strength. He still pushed off, but the flop made it look much worse. On the one down the sideline in the endzone, how does the side judge not call it from 5 feet away, but the back judge does from 25 yards away? Even Aikman was questioning the calls, and the non-calls.