Not in that "routine". Kakashi was "distracted" by Kakuzu's katon attack and Hidan attempted to attack him from behind. And the sharingan wasn't even neccesary for Kakashi to react at that point. Despite Hidan having the advantage, it took him til the 5th panel to actually clash with Kakashi, in other words, enough time for Kakashi to remove himself from being the "vulnerable" target, and put himself in position to attack and or defend.
And yes, it appears Katsuyu can. Despite breaking herself up enough for A.
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B.
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, and C, D, E and F
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, and
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.
So she can at least break up in to that many and still use acid, if not her thousands of miniature selves.