Now you're just being silly. Kind of like the show. Which is why I enjoy it. I don't take it seriously; in fact, I don't think it's meant to. Since you seem to be a selective reader, I'll reiterate that the general tone set is supposed to be reminiscent of the old Adam West Barman series. There's plenty of bright chromatic colors and exaggerated still shots of fight scenes. It's not meant to be dark or gritty. The Dini cartoons were there to dispel the notion that cartoons lacked any kind of complexity or "edginess" and to prove that they could be quality productions for both the young and old alike. I'd go so far to say as we wouldn't have made such great leaps and bounds in establishing the legitimacy of animation without it, companies like Pixar being prime examples.
Returning to the argument, I think you're overemphasizing (or overextending) the magnitude of your examples. Your idea of "dark" (which I still don't believe is an accurate way to gauge the QUALITY of a show) is still disproportional to the old 90's cartoons. Let's look at Batman Beyond, which happens to actually exceed the original in my opinion. Going off of reruns I've seen on Hub in the past few days, there's been several episodes that far exceed whatever BatB has done.
*A mechanical bioengineer's wife was kidnapped by a group of thugs who threatened to kill her if he didn't enhance their bodies with artificial appendages. The wife was this man's whole world; before he met her, he was dedicated entirely to his work. He truly feel in lover with her. He later finds it was all a scam and that his wife never really loved him. Batman effectively renders all the thugs at the end of the episode limbless using a safeguard in their programming; the only thug that survives (who happens to be the wife's actual lover) goes back to the engineer to get upgrades, only to get slaughtered on the operating table as he's going under.
*The Batman Beyond Return of the Joker movie/extended episodes. There's a lot to say about this one, but the key events being the Joker brainwashing Tim Drake Robin through explicitly shown electroshock therapy and chemical injections and then turning him on Batman. The Joker subsequently gets shot by Robin.
*Bane's Venom is given a sort of post-modern treatment in the form of a pseudo-drug awareness/anti-steroids episode. The chemical is being distibuted among students at the high school Batman attends, giving the athletes an extra edge but also inducing psychotic rage as well addiction with crippling amounts of withdrawal.
*A recurring villain named Inque returns as her genetically altered body begins to deteriorate. She seeks her long-lost daughter for help, who initially obliges. During a fight with Batman, it's revealed that the daughter cares very little for her maternal parent and in a surprising twist, kills her just to acquire the money she's been collecting through her various heists. The real beauty in this episode is the mother-daughter relationship that seemed to build up until the end.
These are just a couple examples. Themes touched upon include genetic engineering, the effects of radiation on the environment, the Oedipus Complex, the role of nuclear power following the age of deterrence, the privatization of government, corruption of the police (which is actually touched upon in most Batman media), and the questioning of our perception of reality (a la Matrix style).
I'm not quite sure you've watched the Dini 'toons, to be honest. But if they're not your cup of tea that's fine. I have a feeling this isn't going to change your mind in the slightest.
(Just a tip, much darker is redundant as darker already implies its superiority and sympathic isn't a word.)