I understand what you mean, like I said these were done on EP mobs so the damage done to mobs that really matter will be very different. Besides, who wouldn't rather use Blade Hi, VS and Ukko's Fury; especially in abyssea. It was just merely meant to display damage on EP mobs because that would show almost full damage potential (mainly for fun); for ex. I torcleaver worms in La Thiene for 5k but on an NM maybe 2k.

But thank you for informing me about the damage penalty I was not aware of that.