The main problem is that we're significantly behind on the relic weapons, which usually act as the expansion's time and content sink.

While ShB had a delayed relic compared to previous expansions, that was largely because of Covid tanking the patch cycle almost immediately after 5.1 (and also probably their work on FF16 in the background). Whereas with Endwalker, we're over halfway through the expansion, maybe a year or so out from 7.0, and we're still stuck on the base relic weapons (and even those weapons were mediocre for gearing purposes).