I think SI should do away with the stars altogether and just go with comments - but just expand the comments from half a dozen to hundreds. That way, it would seem like an actual person talking to you about a player instead of a computer making an evaluation based on numbers. Maybe that would even lead to doing away with ratings altogether?
In the USA, regarding baseball, players are quantified with a 20-80 rating system on different skills (speed, defensive range etc), but that is a sport where there is more statistically quantifiable evidence for such things. Football does not provide the same environment for a rating system. I would love a plain language scouting system. How about it, SI?