Warren's appearance as the First really is a pretty small detail.
The fact that the First can only appear as someone who's died is a pretty HUGE detail that's used in nearly every episode in season seven, sometimes as a plot line (Giles possibly being dead/the First, the First fooling them all by pretending to be Eve). I'd say that's more than a minor oversight, and the fact that Joss forgot made me lose a lot of faith. I don't expect him to be as obsessive about the show as we are, but I expect him to remember basic plot points.
Interesting thoughts re: Buffy's moral greyness. I've seen some people speculate that if Spike comes back, he'll be the one to put Buffy's actions in perspective and prompt an epiphany of sorts. That would certainly be an interesting reversal.
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The fact that the First can only appear as someone who's died is a pretty HUGE detail that's used in nearly every episode in season seven, sometimes as a plot line (Giles possibly being dead/the First, the First fooling them all by pretending to be Eve). I'd say that's more than a minor oversight, and the fact that Joss forgot made me lose a lot of faith. I don't expect him to be as obsessive about the show as we are, but I expect him to remember basic plot points.
Interesting thoughts re: Buffy's moral greyness. I've seen some people speculate that if Spike comes back, he'll be the one to put Buffy's actions in perspective and prompt an epiphany of sorts. That would certainly be an interesting reversal.