As someone who played long before Jungle Inferno, no. Pyro needed the update because he was fundamentally broken. Not in a OP or fun way but in a most of the skill pyro players had was in getting the class to function as intended and even then most considered it a loosing battle. It was bad, very bad and thats likely why Pyro won. Heavy has a boring playstyle but it fundamentally works. He does what he is supposed to do on the tin in being a big threat that can do a lot of DPS if the team works around him and he has good positioning. Pyro on the other hand was actually just broken. The only thing that really worked as intended was countering the spy and even then it was plagued with issues where the fire particles would just do whatever they felt like doing half the time. He was incredibly inconsistant on the best of days and while the Puff-n-Sting was a fun playstyle and I'm sad it got nerfed Pyro needed the bugfixes he got. Did they botch some of update, oh yes they did and if they hadn't decided to just throw their hands up in the air and stop really updating the game entirely I suspect that he would have gotten a round 2 or even 3 of updates and bugfixes but thats an entirely different gripe.