Raonic is quite possibly the most one-dimensional player I've seen
The other guys who depend on a big serve, like Isner, Dr.Ivo etc, at least they have one decent shot (like Isner's forehand) or volley skills (Ivo), something to match their serve oriented game.
Milos has.... the flat inside out fh from ad court. That's it. That's the only shot he can hit, only off short balls/weak returns. His forehand is so ugly he can't hit any other type with any pace or spin.
Everything else - movement, bachkand, net skills, control - is complete and utter garbage.