I disagree strongly with this. I read the books, blog-posts, forums, etc early in my career (if you can call it that when I was essentially a teen with a hobby), but didn't fully understand how to apply them, and notably when to apply them, until I had sufficient "time in the saddle". You don't understand the problems that code architecture techniques solve until you've actually had to modify a messy project with a lot of code already written.
> you could become equivalently capable by largely reading and thinking
Theoretically possible, but doing is often orders of magnitude more efficient. You could read reams of books about gardening without actually knowing how to dig a hole.
Part of the deal is that typing forces you to actually pay attention instead of skimming and assuming you got the gist. Following a tutorial by copy-pasting never really worked as well as typing the code, so why would watching an LLM code be any better? I suspect that even as you're running "static analysis" in your head and looking for vulnerabilities, you're using neural pathways forged while coding by hand.