Not true the usa and British media have hyped Raonic for years. He is the best player North America has at the moment but the technical flaws in his game have held him back. You cannot challenge the tip five without a complete game.
It is because Canada is a big market that is why Milos is so hyped. The truth is Fed and Nadal made ATP/ITF very rich and once other coaches and federations saw the big price money they started to talk a lot against Fed and Nadal. But younger guys are not ready yet for big matches. All of them are there more for money than for the game.
Yesterday our comms were talking how Thiem has got a financial problems and his parents have sold an apartment so he could play but he has not got good results and liked to quit playing tennis. The same i heard for Cilic when he won USOpen .