In regards to the big finisher thing, I understand that part because they are trying to keep jobs balanced. They were pretty consistent in the media tour that they aren't going to look at job uniqueness until 8.0.

Forked Tower having these mechanics isn't such an issue; the issue is really that they didn't have a CLL-level difficult instance in Occult, then a DRS-like system for Forked Tower where you enter via PF. Or at least, entering as a 48-player alliance should be possible and should reserve a unique Occult instance just for them.