Did not notice at the time, but research finds Parallels was bought by "Corel" (seller of WordPerfect, etc.) last December.
https://www.zdnet.com/article/corel-buys-parallels-for-windows-on-mac-play/
"The plan for Corel is to combine its cross-platform software with Parallels applications and services to cover multiple platforms ranging from Windows to Mac to cloud to Raspberry Pi."
So it sounds like the idea is to have Parallels service Corel's concept, which is by definition different from the former purpose of Parallels. i.e., Parallels is to service Corel, not Corel service Parallels.
Then, earlier this month, "Corel" itself was sold to "KKR", an investment firm (Kohlberg, Kravis Roberts & Co.)
https://techcrunch.com/2019/07/03/kkr-corel-vector-parallels/
... described as "managing multiple alternative asset classes, including energy, real estate and hedge funds".
Seems pretty chaotic and the events roughly correspond in time to Parallels support falling off the face of the Earth.
Acquisitions based on vague concepts and financial manipulations often seem to end up with the purchased assets (like Parallels) being destroyed because the people buying them are doing it based on vague concepts and financial manipulations. i.e., they might not actually know or care about Parallels specifically. At least not in the way the developers did. Also, the selling of Parallels that kicked it off could be the result of problematic inside knowledge by sellers that buyers with vague concepts and financial manipulations in mind were not aware of but discover in time.
Anyway, at least it can be said that its not unusual for a good product to be gratuitously blown up and trashed as a type of collateral damage, so not something to let be a surprise.