Gmail has done this for the better part of a decade. Apple's Mail app on Mac and iOS also do this out of the box.
Is it really a big deal to you that Microsoft may know that you took your laptop to starbucks last Tuesday? Mac OS already does this out of the box, as do all smartphone operating systems.
And that's fine and all, but does it makes it right? This is a textbook fallacy.
I mean, its a very cheap point to make. "OMG but you're using Chrome!" "But you're using an iPhone!". Yes that might be the case, it has nothing to do with what Windows 10 does though.
Does complaining against Microsoft's policies while using an Android phone implies a bit of hypocrisy? Yeah, a bit. Still that only speaks for the person doing the statement, doesn't automatically gives the green light for Microsoft to do whatever it wants, nor it automatically invalidates any "privacy concern" people might have about Windows 10. That's just not how arguments work as far as I know.