You know what all this reminds me of? Infinite Stratos.
And yeah "le battle harems are shit" I don't care, that's not the point.
The author threw a bitchfit and sabotaged his work because fans didn't like his precious Japanese waifu (who's a generic bland and unlikable tsunderebitch) and naturally gravitated towards the other girls.
Marvel editors have the same mentality with Gwen Stacy (but they're testing the waters now. You can see it with the Gwenpool shit. Arguably you could say they've been testing them for years now with all the clone faggotry and Saint Gwen meme push) and hating on characters fans actually like (MJ being one of them)
Difference is, that's just one petty autist writer and his sales have tanked with Infinite Stratos dead in the water. Marvel has an entire retard-cult of "noo, it's the fans buying our product who are wrong" and Disney money so it's unlikely they're gonna be hurt as much.