Also, how exactly do you want to enforce this? How can you differentiate between a good player and one that uses a battle helper? How can you make sure that a good player is not mistakenly punished for being good?
Thats what I was wondering too. In chess they do it by comparing the moves to the optimal engine solution and determine accuracy. But in chess you can kindof see inhuman decisions that involve planning all possible scenarios for the next 20 moves of action and reaction. In SL you submit your team blind from the ruleset (and you have some hint about what cards your opponent has available). Every possible team combination could always have been conceived by a human player.
I don't want to see people running around and calling every winning opponent a cheater. Thats a pandemic wherever it occurs.
and the loose wording of the proposal gives a lot of grounds for accusations of ToS violations and calls for enforcement.