I can't think of anything more off-putting when purchasing a game than having to create another account.
I have yet to migrate any of our family's 6+ Mojang accounts to Microsoft and I'm not sure that I will. Migrating to a Microsoft account also coincidentally creates an XBox Live account which is a hassle I don't need. If Minecraft needs to die in order to make way for the next creative, social, non-FPS game then I can accept that.
And I'm not convinced that Microsoft's forced migration from Mojang to MS accounts is legal.