I'm not saying that conventional commits are God's given best way to structure a commit message, but they are a defined structure, and I find it much more effective and important that some expectations be set around commit messages, and I think conventional commits are as good as anything.
Like the author is making a big deal that they think scope is more important than type. I may tend to agree, but I think the difference between "fix(compiler)" and "compiler fix" is not exactly a hill I'd be willing to die on.
The tech industry has tons of things that became standards even if they weren't optimal. E.g. if one were starting from scratch I think any sane person would argue JSON should support comments (sorry but Douglas Crawford's rationale for not including comments never made sense to me), better defined numeric formats, etc. But it was better in many contexts than what came before it, so it became the standard. I could believe that there is some other format that differs a bit from conventional commits that is a little better, but not really better enough to want a whole other competing way of structuring comments.