Keysi isn't a martial art. It's a jumble of crap that dudes ripped off from other fighting systems. Martial arts isn't really about combat. It's about achievement. About practicing forms and techniques over and over until you reach some sort of enlightenment. Again if you practice martial arts it's NOT about fighting, it's about personal improvement.
Now to noobs what I wrote will make 0 sense and sound like philosophical mumbo jumbo. But it's the true. You dont really learn how to fight training in karate or TKD. The most effective ways to fight you purposefully dont learn in martial arts (ganging up 2 to 1 on a guy, gouging his eyes, grabbing a dude's hair to smash his face into the ground repeatedly). Martial arts is about conditioning, discipline, and exercise. It's a hobby. Batman is not a martial artist he is a fighter.
Batman is a well trained Ninja and Martial Artist, they should at least show all that training.
The lack of Batarang, Smoke Grenade and hiding in the the shadow stealth attack in TDK reduced the Ninja aspect of Batman which was very present in Batman Begins.
I had the opposite reaction. In TDK, Nolan did a masterful job of illustrating Batman's development. From the first action sequence with the power glove and the glove saw you see how Batman's evolved from the first movie. Putting it bluntly, martial arts takes a lot of work. It takes enormous exertion and enormous expenditure of mental resources to fight even one opponent. It makes sense as Batman gains experience he'd move past such a costly and bulky system to streamline his attack on opponents.
For example, how do you think Batman got to the point of using a power glove? You think it just happened? If you actually got into it, the glove probably has a backstory as intricate as
why Batman uses a batarang or has those fins on his guantlets. Nolan doesn't go into 40 minutes of exposition with it the way he does with the ninjas and batman's batarang but be SURE the explanation is just as involved. And why do you think the power glove has that saw attachment? Somewhere in Batman's adventures you can be sure, there's a kickass long car chase with batman hanging on the top of some moving car in traffic that inspired that saw attachment.
You miss the point. The bit in BB about the ninjas is to set up Batman's stealth and theatricality... NOT so you think "BATMAN IS A NINJARRRR." Sure martial arts is one of the tools that Batman has... just like computers, forensics work, etc but this isn't So You Think You Can Dance... where have set pieces where Batman shows off a certain skill for 5 minutes so prove proficiency like some beauty contest. He uses the right tool for the job to do the job as quickly as possible
The point of Batman is that he's smart about which tools to use at what time. You're not going to have Batman karate chop dudes for 10 minutes that's the OPPOSITE of what Batman would do. If he could shoot a net on 10 dudes as the most efficient way to round them up that's what he'd do without 1 karate kick. You might see a martial arts manuever executed to disarm a specific opponent the most efficient way but you're not going to see extended martial arts pieces from Nolan going forward. Every fight is going to be a mix of technology, psychology, intelligence and physical skill... not some karate showcase
In the real world martial arts is just that an "art" not a combat system. Take a look at the Koreans... every combat marine in their corps is the equivalent of a black belt yet are they out there kicking dudes in Iraq? No when it's time to fight they pick up a rifle. The TKD they do is a form of training for fitness, discipline and toughness. Same deal as Batman... he knows martial arts but it's just one tool. It's stupid to think he'll be running around chopping dudes for 10 minutes like on the old TV show