There is no equivocating here - the assertion is that the folks in this category are incompetent and, "almost rational," whatever that means.
> "I've just realised that welding and painting are different kinds of work and most people greatly prefer one over the other. Perhaps we should label the jobs and let people gravitate to the kind they like so people aren't as unhappy."
Except it's more like, "We hire people to design and assemble complex machines and some people make their own tools while others buy them. Anyway, the people who buy them are basically incompetent and when they claim to prefer focusing on producing the machines rather than tools for building them it's because they are scared of losing their jobs. Let's give them a new title, ideally that trivializes the work."
> "I've just realised that welding and painting are different kinds of work and most people greatly prefer one over the other. Perhaps we should label the jobs and let people gravitate to the kind they like so people aren't as unhappy."
Except it's more like, "We hire people to design and assemble complex machines and some people make their own tools while others buy them. Anyway, the people who buy them are basically incompetent and when they claim to prefer focusing on producing the machines rather than tools for building them it's because they are scared of losing their jobs. Let's give them a new title, ideally that trivializes the work."