The Justice League was originally DC’s premier super team, the big guns team you called in when really serious problems that even Superman (theoretically) could not stop alone came a’ callin’. Then, Post-Crisis, the League was actually turned into a book that was largely played for laughs. That run was actually hugely popular. Heck, Watson likes it, and he largely dislikes comics these days. Considering the run occurred about the same time as Frank Miller and Alan Moore had (inadvertently in Moore’s case) made superheroes a lot less fun and funny, that means a whole lot more.
And hey, we got the Beefeater from that period, too.