Then go right ahead and do that, there will be a myriad of official government instutions, from all over the world, that would be very interested in your findings.

Or MS could simply share the keys with those government institutions there have been literally asking for it, to see wether Windows is actually sending home privacy relevant data.

But the matter of fact is it's a very real issue and still on-going problem.

Just because investing a lot of effort could shed some further light on it does not really change anything about that or the non-compliant behavior MS engages in.

Security only being as good as the effort lobbed at it to break it, is not really a novel or useful insight in this scenario.