Why does basically everyone have the same skill rating?

also using GP as a value is a little off since accounts could have inflated GP for TB (because they launched TB before TW/GAC where people went crazy inflating their rosters to get extra territory points) rather than someone that has few of built up teams and their roster drops off to G1 characters. Also some characters have better utility than others but can have the same GP, which throws a wrench with match making solely on GP.