i wouldnt be angry,,. i would just be annoyed but in the ch 597 it also could have given hints that tobi got the eye from obito so there is a chance it isnt obito :D
Kakashi could warp himself into the other dimension if he focused on the air around him...but then there would be no way for him to get out of the dimension
And i hope kakashi doesnt get s/t tech like tobi cuz its too much of an OP tech