Here again from 11 Warriors - a poster responds
I added the numbers up like you did, but for Georgia, Oklahoma, Clemson, and LSU. Maybe UGA is doing a little bit of processing players (makes sense, given where Kirby learned) 😎, but Oklahoma and LSU don't look like they are and Clemson certainly isn't. For the 2017-2021 period, here are the numbers for those teams:
UGA: 121 players, 93.25 avg rating
Oklahoma: 115 players, 91.13 avg
Clemson: 102 players, 92.55 avg
LSU: 116 players, 91.58 avg.
I don't know if it's "wrong" what Saban is doing, but he is processing these kids.
The point is: if you process 4 more per year, every one of those is an extra swing at the plate. It’s a big deal.