I feel like people have maybe over romanticized the story. People are always pointing out all these little nuances like this one idiot who thinks the fact that the girls changed clothes was meaningful character wise. But it's all bullshit that's not backed up by any real evidence. It's an observation but not a causation. All the rumors about fights that got tossed around? Pure rumor mongering. No. You know what the most likely truth about Highschool was? They didn't plan shit. They had no long term thoughs and even the plot threads that had were all immediate goals that were born out of simple logic. Of course kids would want to find their parents. They had no idea who would win the bowl. They had no idea how to resolve the plague, if they would, party bus had no intention and they were all just making it up as they went along. People treat it like it's some kind of unfinished classic but it's not. Had it continued it likely would have just been another forgotten bit of fanservice schlock. Well liked but generally a blip.
But it being incomplete and the writer passing gave it a romantic aspect, were people are free to imagine all kinds of ideas and twists and what everything meant symbolically. But it meant nothing. They wanted to draw hot girls killing zombies. And they did. And it was fun. But that's all it was. And it was all it was ever going to be. And that's fine. But it wasn't some classic cut down in it's prime. It was something the creators were already getting bored of. Everything else the fan's imagination, it was... well you'll have to forgive the pun but it was quite literally a case of death of the author.