Basically he means, if you have 41% evasion, and your attacker has 100% accuracy, then they will hit you 100% of the time in that 59% chance to hit. So if the RNG says " Ok, next hit wont be evaded", then your attacker will be guaranteed to hit if he aims properly. If he has over 100% accuracy, then iirc from dev chats, and beta, your evasion chance goes down SLIGHTLY. it;s only a very slight percentile, and it doesnt make much difference, but it happens.