The amount of people I saw pick up a champ in league or dota and say this is simple, I've mastered this is sky high. Still no comparison to the genuine people who are top ranks. If this game has no personal skill scaling we'll find out when they open ranked queues. If it truly is 5 minutes to master every hero, and the gameplay is so simple you're saying no one could fail at it, then there will be little difference between low and high ranks (in solo queue). MOBAs are in part so successful because they all seem to have a very low skill barrier to entry, yet a deceptively high one ultimately.