The fundamental change that this brings is that it removes the advantage of self voting not autovoting.

With a time window of exactly 0 seconds, you are wrong even in this. Often autovoters would vote my post first in the 1 second i needed to click the upvote button.

n effort to manually curate will not have an incentive

They have an incentive. They make the same amount of money with manual curators while putting zero effort.