His point is that players chose to use characters that are considered good purely because they win the most with them. Not taking into account fairness or ease of use.
Tbh I have friends that come over to mine to play and they often use drake/raiden/kratos for this exact reason. They get their **bleep** handed to them using anyone else so it makes sense, same thing happens online.
My point being that its not purely the players fault, its the system. Spamming is too effective when it really should'nt be, certain characters dominate over others and players will do whatever it takes to be on top.