Yeah, I don't know how it went down, but I also know exactly how it went down:
Microsoft Execs: Everyone needs to move to Azure!
GitHub developers: But Azure is not gonna be able to handle our load, we literally have our own data centers!
Microsoft Execs: Sure, but you're Microsoft now, please publish blog post about how in half a year you'll be 100% on Azure.
Few months later...
GitHub Developer: We've tried our best, users are leaving in droves and Azure can't keep up!
Microsoft Execs: Ok fine, you can use something else too, but only if you mainly use Azure and continue publishing blog posts about how great Azure is.
Microsoft Execs: Everyone needs to move to Azure!
GitHub developers: But Azure is not gonna be able to handle our load, we literally have our own data centers!
Microsoft Execs: Sure, but you're Microsoft now, please publish blog post about how in half a year you'll be 100% on Azure.
Few months later...
GitHub Developer: We've tried our best, users are leaving in droves and Azure can't keep up!
Microsoft Execs: Ok fine, you can use something else too, but only if you mainly use Azure and continue publishing blog posts about how great Azure is.