I'm sure BB didn't have a clue. Do people really think he's sitting there pre-game worrying about Andrew Luck and then goes "oh ****! I forgot to deflate the balls. Equipment boy, get on it, STAT!" No. Maybe Brady likes throwing balls a little less inflated. The equipment boy probably knows how Brady likes the feel, he probably gets them to that point and shows them to Brady. The only person who knows the PSI at any point is some equipment manager who probably wants to make the GOAT QB happy.
The whole thing is quite silly & trivial, but the NFL has once again made it seem far more important than it is with the dog & pony show. I hate these guys. They really are stupid. I'm not sure you could collect a dumber group of people and put them in charge of a more lucrative organization. Really goes to show you how good the product of football is when the A-Holes running the NFL can't screw it up even when they try.