I think you're reading that the incorrect way, though it's hard to say. This is my take on it

Dev: I get paid for writing features. I can write new features faster in {insert slow interpreted language here}.

Also if the company is of any size, whatever they write has to fit in the rest of their CI/CD stack and pass whatever kind of code review the company does or doesn't implement. So yea it's easy to say devs suck (and they do), but without looking at the entire process they are involved in it can be very hard to qualify why they suck and where the suckage comes from.