Besides, I know MS' history. I judge based on that. If they play nicely this time, then good for them.
But I'm not holding my breath.
Understand that the certification they’re offering is not for a Microsoft-branded version of Linux but Linux on Azure in general. They have full end-to-end support for Linux on the Azure cloud platform now, something they didn’t have when they launched. It could be RHEL, Ubuntu, FreeBSD, CentOS, Fedora... doesn’t matter. Linux is Linux at its core.