Not really. They said that they CANNOT put the pro bowl teams with the players team helmet due to space issues. They already said they cant or wont do it (I didnt care to pay attention to the details). No I dont have a link because I dont feel like searching but it was talked about on here.
As for not blitzing during the pro bowl, I think thats the case for real life. In the pro bowl guys only go half speed and pretty much dont blitz the other team (cant say 100% since I never watch it). So in that regard it seems they did make something realistic but guys want it the other way LOL.