If only I had read....Should have read the whole thing. It worked on a DSM user with enhanced sensing abilities. You think it won't work on Obito who is mostly blind and has no sensing abilities?
Oh wait, I saw that part, and its BS. Sage Sensing doesn't mean that Kabuto has better reflexes than Obito, nor does it mean Obito will get blitzed by the same thing while Kabuto did. I'm going to put my money on the guy who can effortlessly pass through objects and has probably the most advanced Space Time Ninjutsu not counting Kaguya's, in this manga.
Itachi tries to slash him, and he passes right through Obito.