Looks like a foul by the rules to me. Pertinent text in red.
RULE 10 OPPORTUNITY TO CATCH A KICK, FAIR CATCH
SECTION 1 OPPORTUNITY TO CATCH A KICK
ARTICLE 1. INTERFERENCE. During a scrimmage kick that crosses the line of scrimmage, or during a free kick, members of
the kicking team are prohibited from interfering with any receiver making an attempt to catch the airborne kick, or from obstructing
or hindering his path to the airborne kick, regardless of whether any signal was given.
Item 1. Contact with Receiver. It is interference if a player of the kicking team contacts the receiver, or causes a passive player
of either team to contact the receiver, before or simultaneous to the receiver touching the ball. It is not a foul if a kicking team
player is blocked into the receiver or the contact is the result of a foul.
Item 2. Right of Way. A receiver who is moving toward a kicked ball that is in flight has the right of way. If opponents obstruct his
path to the ball, or cause a passive player of either team to obstruct his path, it is interference, even if there is no contact, or if he
catches the ball in spite of the interference, and regardless of whether any signal was given.