As some other commenters have noted, it seems like the copyrighted code is being copied and pasted into many other codebases (shadowgovt says they found 32,000 hits), which are then (illegally) representing an incorrect license. So obviously the source of the error is one or more third parties, not Microsoft, and it's obviously impossible for Microsoft to be responsible in advance for what other people claim to licen…
No. Look at the insane YouTube copystrike situation. Why shouldn't Microsoft be held to the same standards?