Going to carry these moreso out here so that we don't have cases of abilities being added without people knowing why through the discord.
Anyway I think Pokémon should get Chip Damage for the game continuity, reason? Origins acknowledges not only that health is canon but also that continually chipping away at an opponent's health will grant you the win. Red vs Brock showcased this perfectly as there would've been no way for Charmander to win without Red having all of his other Pokémon get some damage in and Metapod's string shot still having some string stick to Onix allowing Charmander to get the scratch off before Onix could attack him.
So yes this does technically mean even in canon if you just fucked around long enough a random early game wild Pokémon would potentially be able to kill an end game Pokémon if it had enough PP and didn't die out from struggling to death.