I think Game Freak and whoever they outsourced the games to think that their target audience (children) would just main the starter and then the rest of the party ends up underleveled by the time they reach the elite 4That's one way of looking at it, but it kind of feeds this ongoing narrative about how modern gamers/gen z kids don't like to be challenged.
This will likely be a whole generation of gamers first game and they will never know adversity.
Its true to an extent, but underestimates the long time returning audience for these games