Who's making these requests? I don't know any actual Borderlands fan who's complaining they're getting too many legendary drops. And getting 20 legendaries from a single enemy is not only stupid, it isn't happening.
The biggest thing I've heard from the ACTUAL Borderlands community is a fully open world.
Pretty sure whoever wrote this just tried to remember a few surface level things from when they called the game 4 years ago and didn't actually talk to anyone who's still playing the games