Yes, Madara does seem to be oblivious to Obito's Onmyoudon, maybe Rikudou didn't write everything in the Naka Tablet and kept some secrets for himself, even Obito is surprised the Juubi's Jin is vulnerable to Senjutsu and they're supposed to know "everything" about Rikudou and the Juubi from the Tablet.
Yes, quite the contrary though, Naruto is about to receive more of Kyuubi when Yin Kurama goes to him. Lol
Seriously speaking though, I'll be sad if Octopops dies:
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