I mean, yes, but it is also a well-established bit of the lore. It even shows it in the first anime when Charizard is so unimpressed by Ash that he usually refuses to fight at all, and the one time he does fight (because the other Pokémon was strong enough to interest him) he just does his own thing and doesn’t listen to anything Ash says.
Because, when you think about it, what are you really going to do against a giant fire-breathing lizard that says ‘no’ when you ask him to fight? Especially if you’re a ten-year-old kid.
I’ve always thought that Terry Pratchett said it best:
No-one is finally dead until the ripples they cause in the world die away, until the clock wound up winds down, until the wine they made has finished its ferment, until the crop they planted is harvested. The span of someone’s life is only the core of their actual existence.