"I..I..Iron Tail, Pikachu."
...how is it a dumb goal? That's the goal of millions and millions of Pokémon games players, oh I see the Goh hate train is still going (and now people from toxic Bulbagarden joining here).
First of all, in the games it is fine, in the anime it is not. Pokémon are living creatures and the goal is impractical. The anime staff realized this very early on by having Ash give up in trying to mass capture to catch up to Gary. There was only 151 Pokémon at the time and in the anime it was already thrown out the window. You see how "Gotta Catch 'Em All" was slowly phased out?
Goh's goal is dumb. Catch ALL Pokémon in order to catch Mew? Why not just hunt for Mew specifically? If Mew has the genes of all Pokémon why not just study ALL Pokémon by having Mew just use Transform?
Goh's dream of catching Mew is fine but his goal of catching all Pokémon is poorly handled and impractical in the anime.
I don't hate Goh, I hate the way they are handling his goal. There's a difference.
Also whom are you referring to with that Bulbapedia comment?