sure, they are "lucky" to get 10% back as curation rewards if they are not curating.
meanwhile it favors the exact opposite of what you describe - smaller votes are easier to gain much higher % from curation than larger votes, which is why most of the best curators never use 100% votes unless the post is really worth it. Now they can just dump 100% on basically anything and have no incentive to spread out to vote on the little guys, because the reverse auction was THE ONLY THING that prevented everyone from piling onto the same giant accounts for curation rewards - as is exactly why it existed in the first place.