As a long time follower of SC2, I can tell you that his win was a long-shot. Maru is an absolutely
insane player. I didn't actually know who he is, and I only saw him play in the Semis and obviously, the Grand Final. A good write-up can be read
.
But anyway, this is definitely a serious upset, and I hope it opens the door to more Chinese SC2 players making top brackets in international tournaments, and it definitely made me quite interested in Chinese Starcraft 2 scene. I'm definitely looking forward to seeing more of him. Gonna need to watch his series vs Reynor. TvZ is by far the best matchup in the game (IMO).