Well, I don't have very good experiences of XFS in the presence of system crashes; you are not alone to get irreparable FS. And even without crashes, the tooling is not very good.

And the thing is that even with uninterruptible UPS, you better handle crashes more gracefully than what XFS is apparently able to do, because e.g. kernel panics can occasionally happen.

So on my side, I'm moving from XFS to ext4. I'm not even sure this will be better, I'll see...