1. No catch. No control through the ground.
2. Sure looks like DPI. Receiver tries to turn at the goal line, DB restricts progress. But it's going to take a felony, not a misdemeanor, to get that call.
Yes, I understand it should be called the same way in the 2nd qtr as the 4th, same at the 50 or in the end zone. But these are humans, and that doesn't always happen.