The whole healer strike literally had people asking for harder mechanics, it was part of
"Lack of engaging content outside the most difficult duties (Savage/Ultimate). i.e. the threat level is too low.
Healers should feel like they have a place in all forms of content. It is understandable that difficulty can't be so great as to bar progression of story-based content. However, innovative means should still be employed to make greater/full use of abilities."
We seen this throughout DT of people asking harder content due to how easy DT dungeons/content was.
While I understand tanks are definitely tanky, the places they can "collect multiple vuln stacks and live" are casual content, which is story stuff, CEs and what not. (Also its almost like tanks can live longer because they have multiple defensive skills to keep them alive/take less damage). Is that a problem sure, but it correlates to the content being easy where it babies players to let them take multiple hits where even if you're not a tank you get to live.
Was Forked Tower ever advertised as "casual content"? The patch notes literally advertise it a challenge, its suppose to be like BA/DSR.
"The Forked Towers are the greatest challenge to be found on the Occult Crescent. Accessible upon reaching knowledge level 20 or greater, you may work together with up to 48 total players to overcome powerful foes and tricky battle mechanics."
Not sure where you got the idea of it being a casual content and that its a walk in the park to do. (And once again I agree the restriction on organizing people into the same instance and raid is dumb)