Restrepo's overall production is going to keep him in the fourth or fifth. He was Ward's safety net all season, and before that, was still uber-productive, regarded as a potential second-round pick. He's not going to fall to the sixth round.
And TeSlaa's production in 2024 faded the moment Andrew Armstrong broke out (but he was still on the field as a blocker and a third-down threat). In 2023, a lost year for Arkansas as a whole, he didn't have much of an offensive line for his quarterback (K.J. Jefferson, who got injured during the Mizzou game because he got sacked a lot), which made basically everyone there have a down year. The second they got an offensive line, TeSlaa and Armstrong were productive.
I view TeSlaa similar to Whittington, albeit for different reasons. He has the athleticism Whittington lacks, and the reasons they were unproductive were different, but neither of them had insane production. Nacua didn't have insane production. I don't think that matters too much in a receiver: just what they can do in your system.
In addition, they're completely different positions (TeSlaa being a definite X, Restrepo being slot only). I already expect the Rams to double down on the receiver position, one who can play immediately, and a developmental one for when Adams leaves.