Desired by who?

There’s nothing stopping Apple and Google from issuing themselves certificates every 10 minutes. I get no value for doing this. Building out or expanding my own PKI for my company or setting up the infrastructure to integrate with Digicert or whomever gets me zero security and business value, just cost and toil.

Revocation is most often an issue when CAs fuck up. So now we collectively need to pay to cover their rears.

CAs fucking up every once in a while is inevitable. It is impossible to write guaranteed bug-free software or train guaranteed flawless humans.

The big question is what happens when (not "if") that happens. Companies have repeatedly shown that they are unable to rotate certs in time, to the point of even suing CAs to avoid revocation. They've been asked nicely to get their shit together, and it hasn't happened. Shortening cert lifetime to force automation is the inevitable next step.