I think what is alluded to is that you have everything mapped out, meaning you have basically already told the story.
It occurred to me that this might be what he was thinking, but I've been pretty explicit that this
isn't what I'm doing, so I don't know why he would think that. It seems to have been a common reaction, but I'm not sure why (and I don't mean that in a "you plebians can't understand my genius" kind of way, just genuinely uncertain what made it seem like that). I don't have a whole plot. I have five factions, a bunch of interesting (hopefully) personalities spread out between them, and an assortment of alliances of convenience, old grudges, and vengeance pacts that give all of them reason to be suspicious of and/or outright hate one another. Then I rig two of them to go to war sometime during the first or maybe second session before the party is heavily involved. With the setup I've got, that war
should spiral outwards to consume the entire city. Unless the party goes out of their way to stop it from doing so, but it's unlikely that the kind of parties Monsterhearts creates would put forth a ton of effort to do that.
When I was talking about season length, I didn't say I had like 25 adventures planned or whatever. I said it was unlikely that the party could resolve a situation with this many moving parts in 5-7 sessions. When I was introducing the concept, I explicitly said I wanted to light the fuse and then
watch what happens. When I talk about themes and etc., I'm talking about stuff the ~30 major NPCs seeded throughout the city are set up to exploit and provoke from players, and really I don't know how else you
could carry a theme except on characters so I'm not sure if that even needs to be said, but whatever. A lot of people seemed to have walked away thinking I have a whole plot thing, but what I've got is a setting, which is why the word "plot" never once appeared in my opening post (EDIT: No, wait, it did show up once, but not in the context of my having made one).
Besides, how involved are teenagers going to be? Who's going to take them seriously?
If you know Jack can turn into a giant wolf monster and you really wish a few packs of vampires were more authentically dead than they currently are, you're going to want to point Jack at those vampires and pull the trigger on his darkest self if you can. Sure, no one's going to care about the party's opinions on grand strategy or politics or whatever, but I'm going to guess that the party is going to want to make them care after the first time one of their buddies from home room gets eaten alive by a vengeful ghoul who doesn't want to risk a straight fight with another monster.