offensive pass interference question

[BigFarns]

Having trouble finding the answer to this so please include the rule references.

Trips right and the offense does a basic wide reciever screen. No big deal since the ball is thrown behind the line of scrimmage the wideouts can block downfield while ball is in the air.

A couple plays later, the same formation and they fake the same screen play. The wideouts block the same but after a pump fake towards the screen play the QB throws a backside seam to the TE on the other side of the formation. Since the blocking downfield is so far from direction of the pass then it's not interference....is this correct?