I can bang out my 50 runs in a week because I can use discord to queue 2 parties of not even competent people, just people who are willing to listen to voice calls and get them into the same instance and easily divide them up to get through the gate fight and even rescue all 6 prisoners easily.

It's such a low level of competency that the average player doesn't meet. The mechanics themselves are normal tier difficulty, but good luck finding someone that'll step up as a leader and take the time to organise it for you.

You can argue it's square's fault for fostering and catering to a pretty lazy playerbase but my only critique is that they made castrum easier than BA because other players struggled.