Both can be true. LLMs tend to be mediocre at (almost) everything, so they're always going to be worse than the user at whatever the user is an expert in.
I completely agree. I'm definitely not an expert web developer. I know enough to build functional tools, but it's not exactly art that I'm making. But the core of our tooling is my primary focus, I wrote it, I've spent a lot of time perfecting it. Claude can easily impress me with things like the CSS magic it weaves, because I am unsophisticated.
But 'mediocre' isn't 'useless'.