Another way it was scrutinized was presuming a ship must discard a focus AND an evade (as the text read they must discard all focus AND evade tokens, and if 0 is not an acceptable amount, then 1 of each must be the minimum) meaning that unless a ship had both tokens every turn, there was no way to prevent the damage. Most ships can't even take the evade action, let alone do both actions every turn. So this was considered an improper reading as it calls for an almost impossible means to counter it.
Not that PTL, evade and focus is impossible, but in a tournament setting, that setup, ship limitations and order of actions would almost never come into play.