(In case the sarcasm isn't obvious, my point is that the existence of errors by professionals doesn't mean the entire system would be just as good if staffed by non-professionals.)
https://www.google.com/search?q=physician+assistant+training
Outside some key areas, most of the software work is not that important.
So this comparison isn't fair.
My girlfriend does React/JS apps for local businesses and she's teaching some other women in the neighbor too.
No she doesn't know how webpack works but she has learned enough to produce results.
Whenever she gets stuck, she looks for Stackoverflow or GitHub issue links and 80% of the time finds the answer there.
Rest of the time she gives up on a tool and uses other tool which doesn't suffer from the same issue.
Sorry i used to think i am very smart because i am a programmer but it turns out others were simply not introduced to the programming way. Programming is wayy easier now with all the tooling/guides/courses available now.
"But any blue-collar coder will be plenty qualified to sling JavaScript for their local bank."
An app that's secure enough for a bank is unfortunately not something one can make without a lot of training. Maybe someday.