Part of Microsoft's problem is that right before the CrowdStrike outage, there was an outage of some large Microsoft services, making the two look connected. It didn't help that a lot of Microsoft support consultants also ran CrowdStrike laptops, getting affected right when customers were.

But this is quite typical. Microsoft generally doesn't direct blame to anyone (anyone non-malicious at least) but in this case I feel like they really should.