Because the thing that makes NS own in pubs is the element of surprise. When night comes at around 7 minutes NS can go gank side lanes quite easily. However when it comes to Professional games this can be easily countered by wards and Teleport Counter Gank. Therefore NS isn't exactly as reliable in Professional GamesEHOME vs TyLoo
The International day two winner bracket quarterfinal match between EHOME and TyLoo. Go to Dota2.com for full Gamescom schedule and results.