>>76967262Because it's a method that works with a cartoon whose main humor is all visual gags, like what Golden Age cartoons were. But most cartoons aren't that. We've gravitated away from that in favor of more writing-based elements, such as character development, continuity, story arcs, world-building elements, and has a lot more dialogue-based humor than the older cartoons (Yes they had them, but it's way more prevalent it things like Rick & Morty, Futurama and Gravity Falls where almost every other line is a quip or some back-and-forth comedic exchanges). Yes, we're still influenced by it, but we also have decades of other works to be influenced by. The Mickey Mouse shorts are probably one of the few things around that can really be compared to the old school cartoons. Even cartoony shows like Wander Over Yonder have elements of "screenwriting" to it.
Now-a-days, it's better to be a writer and an artist and not strictly one or the other. Don Bluth's movies are evident that just because you're a great artist doesn't mean you're a great storyteller. That's why most people who get hired in animation are people who have made their own comics (Usually web or small-time published works) because they've shown they can both write AND draw.
John K. puts down writers though in a very negative way as if their storytelling skills aren't invaluable. The fact that we insult him for it is because he puts them down while being unable to tell a coherent and funny story himself, just indicating how absolutely wrong he is.
Also keep in mind the production method is way different now than Golden Era. They were influenced by Vaudeville, we have decades more of things to be influenced by since then. Everyone part of the production was in the room, we have different departments working on several episodes at once and have to outsource the animation. They premiered before movies, we are on TV that is concerned with ratings, etc.