if your protagonist is silent, it means that your protagonist is actually an asshole and you just censored them for reasons of making the game fun to play
whereas pokémon is good because the protagonist is basically just a ribbon for tying together “the individual narratives of each of your pokémon”, “the story arcs of the supporting cast”, and “the plot of the game”
yes tying those things together necessitates you being Champion and saving the world and all this other shit but nobody cares because that’s clearly just a plot device in order to let you even SEE it; the actual narrative focus of the game is on everybody BUT you
that’s what “silent protagonist” means in video game