It heavily depends on what market they are trying to tap in. LibreOffice always was in the Linux marketpalce, where chances are you will find a community of more privacy oriented people that prefer less bloat, less telemetry and third party dependencies. It only makes sense for them to keep an "old school cool" approach.
Wish more companies would be like that, but sadly we live in our own bubble and there are A TON of people that just simply traded in their brains for AI these days.