The reason why is because the laid off team maintained the Community Wishlist, the main way for editors to feature request for "professional" solutions.
The Wikimedia Foundation also deweighted popularity as a metric for tackling feature requests on the Community Wishlist. This pisses off enwiki as the largest editor base.
From the WMF's perspective, though, enwiki is a cash cow on the BCG matrix.[1] It has been in seemingly terminal decline for over a decade[2], accelerated by LLMs, yet still drives the majority of donations/clicks.
As a result, WMF prioritizes investing in emerging markets over enwiki. This means outreach to indigenous languages in the Global South and developing supporting infrastructure. e.g. "Abstract Wikipedia" which aims to use a language-neutral syntax that can be automatically translated into any language.
These currently form a tiny segment of the editor population but have much larger potential TAM and are growing. So it's the correct strategy even if it pisses off editors.
[1] https://en.wikipedia.org/wiki/Growth%E2%80%93share_matrix
[2] https://en.wikipedia.org/wiki/Wikipedia:Why_is_Wikipedia_los...