Yes, yes, but if Anakin still had troll spray this would have happened instead.
Jokes aside though, thats pretty much the gamble Obi-Wan took on the hill it could have easily backfired on him.
Edit: "Oh the force, not so sure on that. I mean ya their force pushes canceled eachother, but Obi-Wan does have a very powerful force push. Other force feats though, can't say haven't seen/read enough.