I don't know anyone in my friend's group that can do 30+ hours any more. I could when I was in my 20s, sure, but I'm in my 40s now and 10-15 hours a week is more like it. (Granted, right now a lot of my time is getting sucked up by a cosplay, but most folks my age are dealing with some combination of jobs, spouses, and kids.)
So yeah, I'm one of the ones that feels like the content cadence is fine.
Right? One of the things I've been picking away at has been stuff like soloing the old Deep Dungeons for the titles. Bout to go attempt another 10 levels of PoTD. That's evergreen content as far as I'm concerned, considering how prestigious people consider the Necromancer title.