Eh, it's partially justified.

I really don't agree. I don't know if you're a person who needs convincing given your posts ITT, but:

The only significant hit to the pyro was the nerf the Degreaser, and it's not even that significant. At first it was rough because the switch-to and switch-from speeds were bugged, but they fixed it, and it's literally almost exactly the same. The disparity between pre and post nerf switch speeds is -5% for switch-to and -15% for switch-from; the general switch speed buff across the board nullifies the -5% switch-to speed and severely mitigates the -15 switch-from speed, meaning weapon comboing is virtually the exact same as it always has been. Given that weapon comboing is the meta for the Degreaser, this is all that really matters. Increasing airblast cost isn't a big deal (it's literally a difference of two airblasts from a full "clip"), nor is the decrease in afterburn damage (no decent pyro expects or relies on afterburn to actually kill people and never did). Finally, the removal of the damage bonus isn't a big deal either: first, because it's largely mitigated by the buff to all flamethrowers across the board, and second, because no decent degreaser pyro relied heavily on direct flame damage to begin with.

So we balance out those light nerfs with 20 health per airblast, and Pyro is at a very comfy position.

I still use the Degreaser now that they patched up the bugged switch speeds, and it's virtually the exact same as how I played pre-nerf. People who are still bitching about it legitimately have a persecution complex, or are just terrible at the class.

For high level comp play, where Pyro was already pretty bad, the degreaser nerf shook the class a bit. But that's it. Even then, plenty of extremely reputable high level pyro players are a-okay with the changes, especially now that they've had time to adapt. Anybody that's playing pyro in anything other than plat and maybe gold division HL has nothing to complain about.