Well people need to understand that BTAS was an exception and not the rule the majority of cartoons will be childish cause they're aimed at kids. The Real Ghostbusters is probably the only other cartoon from my generation I'd say was as "sophisticated" as BTAS in it's approach. BTAS came out when I was 9 yet at that time my other favorite cartoons were Darkwing Duck, Gummi Bears and Ninja Turtles. None of those 'toons were on the level of BTAS presentation in terms of tone but you know what I enjoyed watching them because they were a great way to pass a half hour. That's what it's all about they were fun.
Even the cartoons I watched when I was even younger than 9 like Silver Hawks, Thundercats, Spider-Man & His Amazing Friends, the 90's X-Men toons, C.O.P.S., Transformers, Masters of the Universe, Ruby Spears Superman, Filmation Batman & Robin, Voltron and many others were riddled with cheese and have aged horribly. But when I was a kid they were the best **** ever cause they were fun. You need to understand the majority of children just watch cartoons for escapism they're not looking for something that will bore them. Not saying BTAS is boring but most kids today probably couldn't put up with a more serious type of toon anyway cause there is no fun in seriousness.
Yeah BTAS had quality writing, direction, voice acting, and respect for the character. But that doesn't mean that this show does not. I don't see Batman having fruit pie juggling competitions with The Joker or surfing with Superman when I see this cartoon. All I see is Batman reacting to the outrageous situations these adventures put him in but he still acts like Batman. He's not a joke or charicture of the concept. Bader's narrations are my favorite part of the show so I say the voice acting is cool and it respects the spirit of the comics this show is based on liked BTAS did with the comics it was based on so it's headed in a good direction so far.