HG131 said:
About the first part, well, with an entire slayer army, killing basically everything evil is quite likely.
I'm less sure about that. They appear to have made truces with at least
some factions of demons as seen in the...first issue, maybe? I don't really remember. Not to mention the fact that, however many of them there are, they will still be outnumbered because of how easy it is for demons to pop in from other dimensions. Hell, one vampire could sire hundreds of people in a week if they chose to.
HG131 said:
As for the second, something tells me that the Slayer was originally made to deal with vamps, but things got more complicated. That, or a Watcher scare tactic. Make them think they can only take the little guys or the Slayer will figure out that our entire organization is dependent on her, and we can't fight.
From what I remember, when Buffy went through the shadow-puppet portal thing, the first Watchers told her that they infused a girl with demon powers, so that she could fight the demons. This being Ye Olden Dayes, actual demons would have been a much bigger worry than measly vampires, which anyone can kill if they know where the heart is or even just run into the daylight.
The Watcher organization was centred around the Slayer, but they weren't dependent on her. Remember the wetwork team from season...3? Not only did they have their own guys who were trained to fight demons, they had guys ready to take down a Slayer if need be. From all the hints in the early seasons, the Watchers had a lot of fingers in a lot of pies, much like Wolfram & Hart, but working for the other side. It wouldn't be in their best interest to repress their most valuable asset though, convince her she's weak and then send her off to fight world-ending threats.