Don't think Swanson has played much this year. In fact, other than Hill doesn't seem like any of the several TE's on the roster ever caught passes very often. There must have been TE's in the game to block but not used much as receivers for whatever reason.
BYU did throw the ball to Hill though. He is a good receiver.
Swanson is a highly touted Freshman. Seems like he would have got more playing time and caught passes. Obviously from what he did today, he can catch the ball.
Sometimes there are things that just don't seem to make much sense.
Maybe someone can take some guesses at this. Since it's doubtful anyone outside of ARod who actually knows.
Don't know how good the TE coaching is at BYU. Clark was let go and Gilbride added. Don't know much about him. Never see anything reported about the TE position or the coaching.