I don't picture Fehoko beating out Wilson for the 5th spot and possibly not even the 6th. On second thought, Malik Turner is, quite possibly, a more likely candidate for that. Fehoko may well be a more likely candidate to get a spot on the practice squad, from the looks of things.
The 2021 WR corps is, apparently, just that crowded with talent. I think it likely really hurt Fehoko's chances of a roster spot when he botched his plays on the ST unit with several horrible gaffs that cost the team badly. The WR corps is really tough to crack this year.