I think a misconception with Hollins is what he was signed to do, and what his role actually wound up being.
Hollins was never brought in to be a starter next to Coleman, or at least he shouldn't have been. In 2023, his offensive snap and special teams snaps were at 39% and 37%. I think the Bills wanted this for last year
Samuel went down immediately, then Cooper, then Coleman, so Mack played 66% on offense and 22% on the teams.
Did Hollins wind up filling in at X a TON? Totally. Was that the original plan for the role he would have on this team? I highly doubt it. I believe the original plan was he is the primary backup outside and a special teams demon. That why when people say "Palmer is replacing Hollins" I find myself disagreeing, because the role they intend to have Palmer fill is MUCH different than Hollins intended role.
Viska Shenualt, right now, may be the true Mack replacement as he's played over 47% of the special teams snaps the last two seasons.