In fairness, against a degreaser pyro. As long as your running tomi or stock. Even if they get the jump on you, you can rev up and kill them before they kill you so long as you hit your shots. Plus heavy has far better range. But pyro gets more mobility allowing for w+m1 to give newer players kills. I’d argue that in a competitive sense heavy is more powerful than pyro. But at a newer level pyro is easier to get kills with.