The problem is the gap and the week one anomaly.
Week one groups clear content with what seems like consummate ease, after which things become frustratingly rough to the point that many people just give up altogether and accept there's more or less week one and the odd patch with basically none the twain to meet.
This is further amplified by the modern emphasis on trendiness. People don't stick around to tough it out, they treat content drops as a short term event and then they faff back off to Wilds or whatever.
If you don't work a job that allows you to that easily PTO on short notice, RIP. And in many cases (especially EX trials), it's not even just WEEK one, it's DAY one, so also RIP people that don't have Tuesday evenings free ...
It also doubtless contributes to the huge increase in emergency/"hotfix" maintenance we have had lately (as an S rank spawner, this is a waterfall tear inducing trend) - because of all this, a delayed patch is a huge deal because people HAVE literally been setting aside PTO to meet the near-need to follow community trends.
We're backsliding, folks. Remember when we were moving in the direction of "it's silly to build your real life around a game?" That seems to have completely gone out the window and we're back to "either manage your IRL to put the game first or get out" culture
And FWIW - even WoW Mythic+, possibly one of the most notoriously thorny and gatekept PUG communities on the planet, doesn't really have this same issue. (I'm not sure why. It might be the more steady flow of gear, or the fact that many WoW players actively avoid patch day because of server instability and bugs that need hotfixing during the first week or two, or the fact that WoW has few options for playing outside of toughing out the raid-style endgame content. Maybe all of these?).
This, so much this, especially when you consider the trickle that tomestone gear is. It's not a +10 ilvl upgrade (which would be huge), it's a +10 ilvl to a SINGLE SLOT every week or two (as the tome prices are so designed that you cannot upgrade a left side in one week). That's more like a +1 level upgrade each time.
Meanwhile the week oners have multiple 760 pieces, but mostly they keep themselves cordoned off while PF is stuck with more or less almost the same gear conditions that the tier started in ...