Very true...the disadvantage is that it leaves the recognition of a player entirely at the discretion of a single coach--their own. Unfortunately, I realize that there are some cases where some type of personal issue could cause a player to get left out. I guess we can just only hope that coaches would want to give recognition to the players who are most deserving, not just "favorites."
A lot of it is subjective, too...sometimes a coach may see things that others don't. For example, a player might show good individual skills on the field but may not be "coachable" to work with others...which might be a big factor in her success at the next level. "Deserving" really is open to a lot of interpretation...and I don't think there will ever be a solution that will satisfy everyone.