The problem is, "nothing but trouble" describes both genuinely problematic employees, and those that simply push back against toxic cultures or bad management. If you were already disillusioned, it's possible that it really was a bad atmosphere, and they were just less shy about calling a spade a spade.

I've also noticed that people tend to measure whether someone looks busy, not whether they're producing results. Some people will just start writing code, and they get called "productive". Others nip off for 2 hours to think it over and sketch out architectural diagrams, and then finish the whole task in half the time - but they're the ones that get called lazy because they weren't at their desk.