Because the ones that we hear about are the ones that are good enough to have even made it out of Japan. If a game was bad, it wouldn’t be localized to an English-speaking audience, and we wouldn’t even know it exists.
It’s the same sort of thinking as asking why (insert media here) was better in the past. The answer is simple - good songs, games, movies, etc. tend to be more memorable, and so we remember the good ones and forget the bad ones. To put it briefly, there’s survivorship bias.
The two types of mentalities on display: