It's actually about two inches narrower than the Camaro front clip that everyone does!
Now, again, I don't like either one, it's still too wide and I agree with you. There are just too many reasons to not do it. But plenty of people do and they make it work.
But I agree, it's too wide. If you are forced to mess with tire size and rim offset just to get something to fit instead of the tire and rim you want that looks the best to you, that is one reason to not do a frame clip.