I wanted to clarify that I (Jelte, the author of the final patch) work at Microsoft. So, it's definitely not just one company seeing benefit in this feature. Arguably Microsoft is a cloud company too though, but honestly most of the active contributors to PostgreSQL work at a "cloud company".
The PG community is a lot of things, but I think “dominated by commercial interests” is not one of them.
Disclosure: I work at EDB :)