If they really did, it's kinda stupid, because it doesn't hurt botters. If you want to bot and drop rate is halved, you will double the price.
They are hurting the legit players, because those are the ones that will need to pay double for the scrolls. For us, it's just gonna take more botting to get the scrolls we want for our sets/weapons.
Or maybe they nerfed the daily raids scrolls too, Well-balanced, tutelary, etc.. So we have less luck for those doing the oath bug.
In the end, the legit players won't be able to pay the scrolls anymore, which is not good business for them, since more will quit. Just like that level penalty, which is dumb, since a regular player can't even farm on hard mode or do dailies without losing money.
In the end, it won't hurt bots much, but there will be just less scrolls in circulation..