Having seen several projects written by people who "happen to know some code," I can tell you there's a good reason this hasn't caught on.

These sort of people can work the very foundations of the company into an ungodly quagmire that would send you screaming back to the fad-chaser dev in a heartbeat.

Also despite the meme, most mid-senior devs are actually keen on making their contributions valuable to the business, having gotten over this phase of fascination with new tools