I really like Jia Tolentino's writing.
The magazine sucks because it valorizes materialism. There's not much more to it than that. Greed is repackaged as positivity and girl power, but it's still a void. The passage I quoted is right--our idea of success is slowly narrowing to this kind of 21st century internet-mediated entrepreneurship. We should dream bigger than kids screaming about video games on youtube.
It reminds me of the often repeated phrase used to respond to people criticizing a popular kids' book: "Well, at least they're reading." The version that would defend this kind of content says "at least they're making something!" The act of creation by itself isn't noble, neither is the act of reading alone. "Would you rather they just watch TV??" No. It's a false choice. Aim higher.