Why is trots insistence on the fact that the workers have to drive the revolution constantly dismissed?

I regularly see trots being memed about because "they do nothing apart from writing newspapers", but to me from their viewpoint (and as an anarchist) it totally makes sense and is a sympathetic view how it should be the workers leading the fight towards a revolution and the vanguard should stand aside and take the role of advisors (hence the newspapers) rather than leaders.

I feel like i'm missing something but i don't know what.