In which case, reimagining them for a new audience of fans is exactly pointless. You can create *anything* for a new fanbase. It might catch on. It might not.
But if the Legion is impenetrable to newer, younger audiences because we've been taught that superhero teams have to have exactly seven members ('cause our tiny human brains can supposedly only handle seven things at once, never minding that the Argonauts, back in the days of ancient Greece, had *fifty members* and those people didn't even have Netflix!), then perhaps it shouldn't have to be twisted into an unrecognizable caricature of it self for them to 'get it?'
And, again, this isn't just the Legion I'm talking about. If someone says that they want to write a Black Panther story, but find the whole Wakanda business too opaque and 'unrealistic' and wants to set it in an urban American environment and deal with social issues and street crime and stuff, then he doesn't want to write a Black Panther story at all, he wants to write a
Luke Cage story, and is just missing the damn point.
If you want a 'Legion of Super-Heroes' that isn't set in the far future, doesn't have dozens of members, doesn't have corny codenames, etc. then it's right there, under the title 'Justice League.' Your search is over. Enjoy.
But not every restaurant needs to be Taco Bell. And not every comic book needs to be the Justice League. I'll be over here in my lane, *not* telling Justice League fans that 'the problem' with the Justice League is that there aren't nearly enough of them, they get dragged into too many crossovers and need their own space for their own stories and need to have sillier names and not take themselves so seriously.