I suspect that is very much just the crowds you move in. Every vaguely large enterprise I know is still 100% Microsoft. A huge part of Microsoft's profit these days is their Cloud department, which is really just printing money selling Office 365 licenses to enterprise.
There's a gigantic cultural division between SME's where the decision to go Google is a no-brainer (whether starting from in the first place, or switching to at some point in the past 10 years), and large enterprises where the inertia of MS Office is just too great to switch.
What's funny is just how deeply unaware both sides often are of the other -- as both of your comments demonstrate. :)