He had a severe benzo addiction and rather than going through the normal treatment of tapering off use, he opted for an experimental treatment offered in Russia where he was instead placed in a medically induced coma to avoid the worst of the withdrawals. This had other side effects though and he later described having to relearn basic motor functions after being awoken, so who knows what else that did to him.

To answer your first question, AWOL is also used colloquially to describe people wildly or destructively ignoring the responsibilities of their job. So it’d be an apt descriptor if it was talking about a REAL priest but in this case it’s just flowery wording (presumably for alliteration)

It doesn’t get a whole lot of attention but it’s the most mature open source authenticator app and one of the first ones you would find in fdroid. With that said, there’s nothing really standout about it or its features, it just works.