Yeah, a lot of software engineering types switched to MBPs because the OS isn't a steaming pile of garbage and it reliably works with the hardware. The former can't be said for Windows these days and the latter is generally hit-or-miss with Linux.
But I wouldn't be surprised if that's a rounding error when you're talking Macs doubling or tripling their market share. I'd imagine most people walking into an Apple Store in their local mall and buying a Mac with Apple Pay on their iPhone don't really know or care about the telemetry added in Windows 10. I still think Apple deserves the vast majority of the credit for the success of Mac.