>EXPZ is Oddguy from Encyclopedia Dramatica
Because people sometimes don't know whats actual quality if they don't have the education and availability of it. People are crazy for The Loud House and SU, both shallow series that mascarade as having "deep messages" which is utter horseshit and even if it were true, the format and actual visual media presented undercuts this. You can't have something that works both for babies and more mature children because their needs are contradictory. Ben 10 (OS) is a show aimed at 10 yer olds, its not super-deep but it carries some basic good messages and conveys a coherent, fun story with a kid being an alien superhero, and in the process of being one, learning his weaknesses and developing as a character.
Steven Universe has a similar concept Stevens dad being someone connected to the whole Gems/aliens like Grandpa Max, and Connie (supposed to) be the smarter mature foil to Steven, like Gwen is to Ben, or the Gems are Stevens main 'power' like the Omnitrix is for Ben. However the difference is execution. The animations is worse, the art-design is lazy. The characters are unsympathetic; Connie comes off as too meek, like a flat imitation of Katara from ATLA rather than Gwen's haughty yet usually correct assertiveness, Steven is an infantile whiner who sounds like someone took the Naruto dub and put it through a wringer 3 or 5 times and acts like a child 1/2 his age, the Gems, being independent 'persons' have their own characters unlike the Omnitrix alien forms, however they act like a band of ideologues and might as well be NPCs controlled by Steven, something pointed out by Peridot when analyzing the cluster. Steven's Dad is a mix between a hippie, and a yuppie who lost his property in alimony payments and generally is useless. Neither assertive enough to tell Steven off for shitty behavior, nor does he have specific powers or knowledge, It would have been easier to just have him be gone.
The themes are contradictory and in the attempt to be "DEEEEP" ends up being shallow and boring.
TL;DR: people used to shit content are going to like and want shit content and part of being leftist is to analyze and assess the validity and quality of what we consume, preventing us from degrading to where any shite blob on the screen is "entertainment" (like the Emoji movie or other rubbish), this is why we cannot withhold criticism of quality.