Won't happen, because the number of characters updated for each new version is adapted to the total number of characters.
Was updating 2 characters, now it goes to 3 or 4, so it doesn't slow down progress as you get to see a new update for a specific character in the same pace.
Ps : Also the highest rated games you're talking about saw the light during the Covid, aka the golden age of porn games, where everyone was willing to fap even on a monkey's ass at this time, so their data is outdated, the meta has changed.