The simple fact that you believe this is insane to me. Microsoft?Security and compliance? Ahhh, yes the north star of security!

No, you don't need either of these companies if you need a corporate stack for communication and collaboration. And anyone who believes Microsoft or Google is doing anything out of the ordinary to protect their users or data is out of the loop.

It's not about actual security; it's about the appearance of it. It allows CTOs and such to check a box to say "Why yes, our vendor is secure! Look at all their claims! Look at how many other companies use them!" That's it. Safety in numbers for clueless CTOs.