There is a disproportionate amount of 5-star players. Last season, I had 9 or so players scouted, and 3 of these were 5-star. This season, 10 of 20 are 5-stars. Is this a trend, or just a weird case of the fall of the dice?
I'm pretty sure the distribution is not uniform, and hasn't been in the past. I'm not sure whether 5 is the most common or not.
It is also possible that the star rating is based on a player's best skills (eg "5" might indicated that a player's 3 best skills are respectable, and gives no information about whether the other skills are atrocious or two more respectables and 3 averages). If the skills are independently generated, that sort of classification would make sense.