Honestly having done the content myself (well up to Twin Bridges at least) I can say that it's a great raid that is severely hampered by the needlessly punitive entry requirements. I find it utterly baffling that the developers would silo off the crown jewel of the Occult Crescent in such a fashion that many players won't be able to experience or enjoy it without joining a Discord group, but then again this isn't the first time the devs have made a questionable design choice and it probably won't be the last. The way that they have created this convoluted entry process seems utterly tone deaf and it seems like they have not listened to the feedback they have received about previous Field Exploration content like Eureka/Bozja especially in regards to how positively the 48-man queuing system for Delubrum Reginae Savage (DRS) was received. There are two potential solutions that I think could make this content work better as currently both casual and hardcore players are dissatisfied with the current entry system:
1) Keep the current entry requirements but remove the resurrection restriction and don't kick the 48-man alliance out if there's a wipe, let them try from the previous checkpoint if they fail and give the instance a 90 or 120-minute timer. This would make the instance a lot more PUG friendly, making players more willing to give the content a go without diminishing the difficulty of the fights. It would make it less of an issue if random players get into the instance because if they make a mistake it can be easily fixed and the Phantom Job distribution could be reshuffled (maybe also remove the restriction of changing Phantom Jobs unless combat has started).
2) Keep the current difficulty of the resurrection restriction and wipe = kicked from instance in place, but let Forked Tower Blood (Savage) be queued into via a 48-man queue option from outside the Occult Crescent instance. In this case a Forked Tower Blood (Normal) raid should be made available in the instance with no resurrection restriction, no kick on wipe and maybe reduced personal responsibility compared to the Savage version. Again this way more casual players would have more content to get stuck into and complete the story of the South Horn and more hardcore players would be able to access the duty more easily so that the more punishing aspects of the raid don't sting as much as accessing it would be a much less complicated affair.
I don't expect there to be any changes in the upcoming Live Letter as I know the devs can be slow to implement feedback (it's like the game is like an oil tanker that takes a long time to turn around if it's going in the wrong direction), but I'd really like them to look at this soon because Forked Tower has currently created a situation where everyone loses, it's created needless friction between players and fostered hostility and toxicity within what should be a really enjoyable capstone piece of content, the players deserve better Yoshi-P...