xeroBrimstoneIt has been established that it's stupidly useless in general play, and then stupidly easy to use in really niche situations. Just a poorly thought out class in general.What about going engineer on mid? -Its stupid.
What about goind pyro on gully defense with disadvatage? -Its smart.
If we will look at other offclasses they have they upsides and downsides too ("they are situational") as well as pyro. Theres no reason to hate. Its just 1 out 9 of classes what has his own metagame.
The point is that the pyro's meta game is just too easy.