I concur. Pyro's always been the worst class.
Also, Scout's upgrade is more than welcome. Before, he was mediocre. He SUCKED at fighting. In fact, they put the focus on his speed. The Scout had caltrops (spikes) and when you stepped on them, it slowed you down so the scout could high-tail it outta there. So giving the scout a gun that isn't grossly underpowered is very welcome.
I'm bummed that they took the medic's shotgun away from him, though. That, and the removal of AIDS sucks. Basically, if the medic healed the enemy, the enemy would be infected with a disease. Whenever the enemy touched one of his teammates, the disease would spread. It could be healed when their team's medic healed them. I really, really wish they'd bring that back. Not only did it help the medic out, but it also gave an advantage to the other team, as the team would get pissed at each other for spreading the disease.