Nobody offers more than a year now. It’s annoying. So many old devices still need to be supported and can’t automatically update.
Correct, because the CA/Browser Forum no longer permits CAs to issue certificates with validity longer than 13 months:
If I have a smart device at home I may put it on a network that has no outgoing access to the internet, but it would still be nice to be able to connect to it with a web browser without getting angry expired certificate warnings.
It's not the worst problem to have, and I don't think it's easy to fix, but it's still annoying.
I don't want LE to waste money supporting such use cases.