EzekielRaiden
Follower of the Way
They certainly did, given:What laid the egg, wasn't a chicken.
The adventures are written for sub 15 levels.
Nobody said anything about untested or unsupported...
(a) multiple people have spoken about how there aren't adventures (amongst other things) made for high-level play (aka unsupported)
(b) multiple people have spoken about how things break down and become unbalanced at high levels, and very specifically that (they claimed) players stop playing at those levels in part because players are at least subconsciously aware of things becoming wonky, IIRC around level 10-12 was the specific claim.
So yeah. Untested, clear balance issues; and unsupported, few to no written adventures.
What's the issue?