I can understand wanting to get your gear more quickly, and then being able to keep gearing everything, but it's largely unnecessary in the first place, so I don't see them wanting to shorten the time players spend with Savage anymore than it already has been.
As much as a lot of raiders strive to get BIS gear, it's really not the be all end all, except when you want to go do an Ultimate, but even then, in later patches better gear comes out that's actually at the Ultimate's level sync cap, so with the exception of a few pieces, there's not a lot to be gained from having BIS from a Savage raid tier.
This is a game of vertical progression, so all gear that is the best, at one point loses its status as the best. The easier it becomes to get, the more people will expect you to have it. Before long you would be seeing Party Finders that require you to have your BIS on the job you want to play, if you even want to farm. With the changes you suggest, this would happen relatively early each tier, causing more people to struggle to be able to even join PF groups. This is in spite of the fact that you only really need i510 gear to clear the Savage tier at a minimum. I'd rather not see that happen.
I mean, I won't pretend XIV's gearing system is perfect, but the way it has become in Shadowbringers definitely favors static oriented play over PF trials by rando. Someone else said it already, but I would also love for them to not impact loot for the rest of the party if a vet who's already cleared comes to help. It's really common for statics to have people miss days, and if the group is really hard up about getting two chests over actually clearing and getting anything at all, a lot of people opt to just lose for the week. They've already shown us that people who've already had the chance to roll on loot can't even see the chest when it opens, so I don't get why they feel the need to gut the amount of loot. I suppose it would be to encourage statics to have their usual members come back in and clear. And I guess also to cut down on carry/sell runs.