ESB, perhaps it is you who should pay attention... Yoda's hands were parallel with his chest when the blast slammed into him. He did indeed try to deflect it; unless you're insinuating he intentionally let himself be nailed.
No. Sidious delt him a blow because Yoda was too slow. Dooku never did. Like it or not ESB, and you'll have to deal with it. Sidious injured Yoda. Dooku did not. Color it up anyway you like. Dooku simply didn't do it.
Make all the excuses you like. I'll be happy to give you my rebuttle.