I'm assuming this is related to the previous drama back in 2020:
https://lwn.net/Articles/833233/
Apparently TDF wanted to host LibreOffice Online for free, when it had previously been a source-only project. Collabora didn't like that as they did 95% of the development and wanted to be able to sell support for their own version, but they didn't want to be competing against TDF's version at the same time.
I can understand Collabora not being jazzed about it, but is there anything in the license that would prevent a third party who is neither Collabora nor TDF from doing the same? I mean, it's one Dockerfile away from anyone doing it, right? May as well be TDF who distributes an official binary.