WR: He'll be expected to be a great blocker and functional receiver.
TE: He'l be expected to excel as a receiver and be a functional blocker.
Playing TE would put the emphasis on his receiving skills because he is not going to be a better blocker than the 250+ pound TEs on the roster.
He would need to be the starting TE for that to be a fit. Teams can and often do give up some blocking ability for starting TEs that are good/great receivers; however, teams almost always use good blockers as the #2 TE.