People like to act like today’s cartoons all look the same, as if people haven’t always purposfully capitalized off of style trends in the media.
If anything the styles we use have only become more diverse and more versatile.
You could say the current kind of style homogenized a bit after adventure time popularized it but you can say the same thing about Avatar and teen titans during the early 2000s anime boom.
Style sells. If you want the styles you like to succeed then you have to show networks that you’re willing to pay for it, play footsies with capitalism a bit.

((The middle collage is mine and the first and third collage were made by @ Calavera145 on Twitter.))