Not sure why people blaming Microsoft when the problem is obviously with CrowdStrike and their shitty antivirus?
People blame Microsoft because that is who they trust to keep their system secure. They paid Microsoft for a solution, and when issues arise, it is natural to look to them for answers. Yes, CrowdStrike might be involved, but the average users have probably never even heard of the CrowdStrike company. nor do they care about it.
Imagine you hire a security guard (Microsoft) for your house and theres a break-in (security issue). You wouldnt blame the guard's security camera company (CrowdStrike), even if they might have malfunctioned. You paid the guard to keep you safe, and thats who you should hold accountable.