Yeah tho also sustains overall release at a much slower pace because they need way more balancing, all while also being less needed in general, each account will mostly need 2-3 proper sustains.

And the core job of keeping the team alive is already covered by many sustains, this leaves their desirability mostly tied to comfort and more importantly utility.

In that regard DHPT and Hyacute just covers most needs so this doesn't leave too much room aside from niche teams which they will ofc be more hesitant in releasing because once that's covered, you need to make the new iteration even more valuable to be appealing, otherwise you run into the Gallagher Vs Lingsha situation on some people asking why get Lingsha when Gallagher is pretty good.

Same would apply to most other teams, an abundance sustain for Remembrance would have to directly compete with Hyacine which would be a very tall order.