You're right, though. AWS has far more data centers/regions. Even if a company only uses AWS, they can set up High Availability/Disaster Recovery solutions that replicate across AWS regions.

But they won't because:

• management doesn't understand the technology, just "cloud good".
• the experienced tech workers who do understand that you still need HADR in the cloud have all been laid off or retired.
• redundancy costs...wait for it...money.