The thing is, some folks are eating a Filet o Fish, but because it looks like this they think it's better than what it is:
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And they lack the experience to recognize it, because they've never had great food before. And in some cases, they are very proud of the fact that they don't eat the food they make. If martial arts were food, then this picture epitomizes the issues. These same people would argue that taste is only one reason people eat food. Some people prefer how it looks, and so the plate above is meeting their needs. Nutrition is another measure, but not everyone is looking for nutrition, and if you don't eat it anyway, why does taste or nutrition matter?
Practical arts, like MMA, boxing, Judo, and a host of others, are like delicious food with a rustic presentation. Some are more nutritious than others. Some of the practitioners are better at cooking the meals, but they all taste great and provide some nutrition.
And styles where there is no practical application are like foods that look like art, but aren't tasty or particularly nutritious... or more accurately, where these two things are deprioritized.
The trick is figuring out which parts of martial arts are nutritious, which are tasty, and which are pretty. I know the answer is clear to me.