I think bet on e-sport especially dota 2 is more risky than other sport
in dota2 tier 2 team can still beat top tier team, as we know in shanghai major. almost lower bracket fulfilled by china team and in the first day the overated team like ehome and secret beaten by mvp.p
also there is 322 problem, when some player betting against his team and throw the game so they win the prize
But it's rare to find a team do 322. Because if the team get caught, that team will get banned forever from Valve event like team Arrow Gaming.
My next bet is EHOME vs CDEC, best of 3. And EHOME is the favourite on this match, i think EHOME will win this game.