As an owner of three Minecraft accounts, I can say I got a ton of emails about it, and in-launcher reminders over the past 3 years, and I took care of this a year ago.
No one has any business complaining. There was a lot of warning. I am not one of Microsoft's usual defenders, but this was very straight forward, and necessary, as they had two completely different account systems: The old Mojang accounts grand fathered in from OG JAVA Minecraft, which is what I mainly play, and the MS account tied to the XBox, Windows and all the other new platforms.
DEI hire? Oh how cute, you think you found a way of being a racist without sounding racist. That's adorable!