>>111090605I think it was because it was supposed to be a 30 minute advertisement for toys for girls aged 3-7, but it turned out to be surprisingly decent with good voice actors, plots (and not just ponies you want to fuck or whatever), and some pretty good episodes. Some bad or bland ones, but overall it was better than everyone expected it to be.
I think that created a springboard to launch it into an obsession for a lot of people.