In the west we seem to correlate "enlightenment" with some level of "perfection", but I think that's actually pretty far removed from what many eastern traditions consider it. This results in us having weird expectations about how somebody who is "enlightened" should behave.
I think it's totally possible that Culadasa has had the experience of "enlightenment" (a certain state the brain can exist in). But it seems like this state may actually be morally neutral.
There's a reason the Eightfold Path in Buddhism isn't just "meditate really good until you reach enlightenment".
So what I mean is that some people, like Culudasa, probably experienced a brain state that might be called "enlightenment" in some contexts. But either we've been way oversold what that actually means, or he only reached one of the lower "stages of awakening" and hadn't yet fully, and permanently, abandoned all the fetters.
(I tend to think it's probably the former.)
No tradition have exclusive rights either.
What we can do is point the direction, what it is not, etc., when someone is seeking realization.
My eventual take loosely is that the guy was somewhat of a charlatan/double-minded from the start so, it's fine - it's still worth trying to free yourself of desire you can probably do something like that, and best to go on as if this guy never existed.
EDIT: seems like there's a lot more to the story, and I think the poster you're replying to is assuming only the worst possible interpretation: https://www.reddit.com/r/TheMindIlluminated/comments/kw6wbl/...
Also, apparently he now has terminal cancer, and likely has less than a year to live. He's staying with family, which makes the above posters comment about "he is now isolated, leaving his very-much-extant sensual longings starved.)" seem untrue and unnecessarily cruel.