You are correct. Reading through it does seem like they don’t want to do any appeals.
I guess, I don’t really blame them. The game is how old now? How likely is it that a real person was using a modified version of TF2 that explicitly didn’t give them an advantage, and was banned?
Guess only thing to do is wait and see just how many people were banned, however from the sounds of it, it was desperately needed and now a significant amount more people can actually enjoy the game.