Edits placed in the review queue require two users with the editing privilege to approve it, which means that even if one user isn't careful enough, chances are the second one is.
I say don't worry about it—if it's drastically incorrect, the edit will be rejected. If it's something that the reviewer can fix, they will improve it. What happens in that case is your edit gets accepted, but the reviewer is directed to the edit screen to improve your revision. It's a quick process so you have nothing to worry about.
The fact of the matter is that the editing system doesn't need to be complicated further for users who don't have the privilege already. Like I said above, if it's absolutely wrong, it will be rejected—otherwise, it will be approved by users (and it's good to trust each others' judgement) or improved.