Actually, this proposal is much worse than I thought.
Basically, the MLBPA wants to limit the number of times a player can be optioned during a season, so MLB is agreeing to that, with the proviso that they can cut 16.7% of non-unionized minor league players.

So gross. pic.twitter.com/8lE7hg6hVA

— Sara Sanchez (@BCB_Sara) February 15, 2022