The important points are these. Normally, world standings are based on the last 2 seasons, plus the current. For the 2009 WTT, a different system was set up using only the 2008 - 2009 season. Since Evan was World Champ and Jeremy was GPF champ, they were on top.
Secondly, there is some tough language in that memo that states the ISU expects top skaters to compete, and mentions possible consequences.