That is not at all the same logic.
With Crusade you reach full stacks after 10-15 seconds, meaning you have 5-10 seconds left without any traits, meaning the traits give up to 15 seconds extra of 52.5% Haste & Damage, meaning those 6 trait points give you more of a bonus than a separate Crusade cooldown would.
In other words, not comparable.
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Go for it. I'm on EU so I have literally zero voice on the official forums anyway.