I’m all for standardization but you could just use this argument to keep any suboptimal status quo in place. XML is good enough and a standard. SOAP is good enough and a standard. etc.

The claim is that Conventional Commits are good enough and standardized enough that having another structure isn’t really worth it. But “worth it” is subjective. I’d say that if you are making commits and reading PRs every work day, and the conventional commits format causes a little bit of friction, that friction can add up. Having another option other than seeing conventional commits as a law of nature gives options for teams who prefer it. (Most teams aren’t generating changelogs anyway.)