First off let me say that waiting at a battle screen tactic is WRONG and needs to be removed.
However, any limitation to ganking in an Open world PVP server is just wrong. However, the 1.5 battle rating discourages any kind of strategy when "baiting" out an enemy force. You are practically saying, "hey I know you worked hard recruiting 40+ members and I know that baiting an enemy squadron out takes both patience and finesse. However, the enemy fleet that attempted to gank your member requires a fair fight and must be able to see what you bring to the field so they can decide not to take the fight and run back to port. Therefore you can only bring a portion of your force."
Please don't ruin this game by catering to the carebears who whine just because they got sunk. If they don't want to fight, pick either a safe spot on the map or go to the PVE server. Heck, form a defense fleet and chase us out of the area. But please get rid of this ridiculous 1.5 rating.
We fight the Spanish, frequently down in Victoria. We have been highly successful at baiting the Spanish out of port using a Le Gros Ventre. The same people who were going to gank the Le Gros Ventre then complained when we dog piled out of port and jumped into the battle just seconds after the tag finished. Why should we be punished for defending one of our players by counter ganking.