And so what? "You can succeed if you go into trades... but make sure you don't end up in some of these widespread roles" is a very different narrative than what is usually presented.
There isn’t any automatic get rich easy scheme. To some extent you have to keep your wits about and make sure you are getting your worth
Everyone I know in the trades "put in their dues" with at least 10 years of working for someone else, doing the shit jobs, working outside in the rain, in the mud, in the heat, in crawlspaces, in attics, etc.
The smart, driven ones learn all they can, advance, build relationships and reputation, and start their own businesses. The lazy or dumb ones continue to do the crap jobs for their entire career.
And even that, management and business skills are not the same thing as being good tradesman. Just like with programming, you can be smart and driven and not be management material.
The question was whether trades arw good occupation. Not whether you can be better off by stopping being tradesman and going into management.
Imagine this for software engineers. "Yeah, SWEs get paid shit and have a bad working environment but some of you will become managers and get paid bank." That wouldn't exactly be a "wow software is an incredible field to be in" situation.
If people want to say "we need more tradespeople - going into the trades will be good for your career" then it better be the case that the actual laborers are getting decent pay.