While that's "true", I think, in part because I'm never seen it done so soon before, aside from parts being filmed back to back like LOTR or something, is that they just wait for the "smoke" to clear, or let the bad taste in people's mouth a chance to be lessened or forgotten.
So while they don't HAVE to wait, I think they always will.
I met her, fifteen years ago; I was told there was nothing left; no reason, no conscience, no understanding; and not even the most rudimentary sense of life or death, of good or evil, right or wrong. I met this cow, with this blank, pale, emotionless face, and the blackest eyes... the devil's eyes. I spent eight years trying to reach her, and then another seven trying to keep her locked up because I realized that what was living behind that cow's eyes was purely and simply... evil.