I suspect you never needed CAP in the first place, because even outside of cloud, you don't seem to pay a lot of attention about whether your service is up or n

I suspect you never needed CAP in the first place, because even outside of cloud, you don't seem to pay a lot of attention about whether your service is up or not or how to increase that uptime. In the same spirit, some businesses are fine with a single db, making backups every night and losing some data when an issue happens. It doesn't mean that people maintaining these systems get to tell others that distributed systems are essentially a non-problem.