This is worse than it looks, since the person who wrote the blog post is the same person who insulted the dev, and is the same person who joined that dev's related discord under a pseudonym. [1]
The fact that he went unmentioned is pretty damning. I don't give Microsoft the benefit of the doubt here -- this reeks of stealing credit under the guise of "open to feedback".
[1] https://twitter.com/cmuratori/status/1522471966929653761