Here are my thoughts. And as you know, my thoughts are really smart.
1. Defensive pass interference is a spot foul. Which means it assumes that the offensive player makes the catch in the absence of interference. So it's a huge foul on a deep ball like that and I think that probably makes it more likely that they aren't going to call it. If it's 15 yards and a new down, you might get that call.
2. If defensive pass interference is a spot foul, then offensive pass interference should be a turnover at the spot of the foul.