The dark side clouds everything.
Proving its strength. Hell, Yoda couldn't even figure out: [a] that Anakin had been a little overzealous with the Tusken Raiders, [b] what was bothering Anakin, or [c] that Anakin had a wife. And, Yoda got his little green @ss whupped one on one with a guy who'd just had his face fried.
SITH RULE!!!