I strongly disagree with applying anything retroactively. These reviews were made when the standard for reviews was different from what it was now, when a few lines and a small comment about whether an upload was good or not was enough to qualify as a full-fledged review, and those reviews were written with these standards in mind. Retroactively changing them would influence the rating of uploads in an unfair way, because there is no way people could have written their reviews according to today's standards back then, and thus it is just unfair both towards the uploader and the reviewer to change those reviews to quick reviews. Additionally, most old uploads would then have nothing but quick reviews, which are due to the way they are displayed right now easily overlooked and often not read.