It's funny. I didn't even realize the change until I saw the thread in the WI/HT? forum. Probably because I'm such an honest voter. =) Well, later I noticed it was pretty obvious when I saw some larger files under judgement.
Here's a nice example of how this works. It was a clock crew submissions, it had three or so authors, all of whom had previous submissions, and the file size was well over one meg. It was utter shit; it only had some flashing images and lasted probably 4 seconds. The score was horribly overrated, but it did get blammed. Had it not been for this new timer, it might have been protected because of the authors' reputation. However, this is just a unique case, so we'll have to see how it works out later on.
I think the delay is a bit too short though. By that, I don't mean I want to wait several minutes for the voting panel to appear. However, if the file size is small, the timer could be set to 2 or 3 seconds per 100kb.