This is where their attempts at making the last expansion relic too easy is turning around to bite them. At the very least past relics would keep you busy, now they have been so miserable and easy that I actually have 9 of them on near the final stage on an alt character because they are just comedically accessible that you have enough Tomestones before even doing 80-90 or 90-100.

I am not too concerned in the grand scheme, because they follow this same downtrodden formula. It will be 'raid content enjoyers' that are asking where all their content is after they've done the final savage tier in 7.4 and have to wait 13 months for the next raid. Ultimately over the course of an expansion they have just as bad treatment as casuals, with the exception of all their content being frontloaded.

They need to see that their expansion lifecycle benefits nearly nobody, and that in the grand scheme of things, it's a miserable experience for everyone.

TL;DR a lot of this is an issue exacerbated by how accessible Manderville relics were, and the absence of a repeatable content in Endwalker.