I'm not sure that link is a fair representation of the updates. This has more detail https://learn.microsoft.com/en-gb/azure/devops/release-notes...
Discussion about it going ELO has been around since 2020-ish. But that is a worry i agree.
I get the feeling there is a long tail of old-school corps (migrated from the TFS days) that will keep the lights on. And for some orgs you just need "good enough" CI/CD pipelines that are reliable.
Maybe I'm a weirdo, but i find the kanban/sprint board pretty usable as well.