wtf is the difference between a finishing move and an exicution
No worries... you ought to be confused because he's trying to detail the use of the word differently, however, they're actually the same thing.
A finishing move is an execution, and an execution is a finishing move.
You could specify meanings between the two for a special case scenario, but they mean the same thing from a general perspective as the end result (and purpose) of them is the same.
So although he's confusingly attempting to define a non-existent line between them, he's essentially wanting a new execution/finishing move added.
It probably won't happen though simply on the grounds that most people couldn't care less about H2H, given that it's completely inviable. Can't say I wouldn't mind dabbling with some Splinter Cell in Skyrim though
