True but he still wouldn't beat atheon or crota simply for the mechanic of the fight and his way if handling new enemies. He never goes straight for the kill, he tries to talk and or reason with his enemy to understand why they are fighting or what they want while dodging playfully or if he's powered up, he dodges and talks shit. He never cuts to the chase unless the fight has been going for awhile and its round 2 for him and the foe. The time he kills trying to talk is the downfall for atheon cause atheon would teleport him somewhere in time, and crota only takes damage from his own sword. And odds are when goku downs crota, cause he would definetly down him, he would take and break the sword instead of using it against him because he doesn't know its a key part of the fight. Even if by some wierd god magic instant transmission he was able to teleport through space and time back to atheon the oracles would have already taken effect on him and since he knows nothing of the relic he'd be lost in time.