Earlier quoted context omitted.
The Microsoft acquisition of Minecraft is inexplicably one of the few big tech acquisitions that hasn't completely destroyed the product. It's impressive
Eh, aside from making java and bedrock incompatible, requiring Xbox live accounts to play, deleting customer accounts in the transition to Xbox live, making realms which are different somehow from java and bedrock (many parents had a devil if a time figuring out how to setup a server for kids playing on all the platforms during lockdown)... Aside from this they didn't ruin it.
For some reason they locked my completely unused Microsoft account, that was created for the sole purpose of migrating my Minecraft account to, due to "unusual behavior" (or "activity that violates our Microsoft Services Agreement" if you go by the error message instead of the corresponding knowledge base article).
The reasonable thing to do in such a case if of course to require users to "[verify] [they] are the account owner" by receiving an SMS verification code on an arbitrary phone number (they explicitly mention the possibility of "asking a trusted friend or family member" for this).