In fairness, the "you're losing something you'll never get back" is in early access. We don't know if that line is still in full release, do we? That may have changed with some of the other rewrites.
This is why it's difficult to make these kind of calls without seeing what's in full release.
I am 99% sure that line is in the final game. I believe I have seen it recently in one of the videos from the full game though I don't have the link to that right now. But in the full game the illithid wisdom checks are largely identical to the way they were in early access. The guardian was changed and you no longer get powers from the illithid wisdom checks but otherwise they are still there as they were.
