That's right. In fact, esports is just easy to predict when you really know the game and who the players are. Mostly those team with a player with high ranking in the game are considered a strong team so placing our money to them is a good idea.
No, esports will not be easy to predict if you don't know anything
At least, you need to know what their chance to win. If they really can win easy, I think many people will place the bet to them. Sometimes team with a player with low or middle ranking can beat the high ranking because they have a strategy to defeat the strong team. So it still difficult to predict when you cannot get to know for each team.