I am fairly reluctantly saying that, but since Nadella took over the CIO from Bannon, it does *seem* like M$ has indeed changed course in a way so they let other systems, at least as long as they do not pose a substantial threat to theirs, live relatively unmolested.
I admit, mistrusting M$ has a long history in my mindset, but it is 8 years now that Nadella changed the company policy substantially, maybe it is time to attribute them some trustworthiness.
Anyway, as long as I can get back my sources and metadata and go somewehere else there is a plan B, in case they decide to reverse course. I can always host them on my own webserver, as long as someone is willing to publish the link in the wiki.
Armin.