From the way I am reading it, the concept of intravenously taking EPO, and the volume of EPO that technique allows, undercuts the "micro-dosing" concept. These are not "micro-doses" they appear to be "macro-doses" or "mega-doses".
If you can take a larger quantity of EPO, and it increases the blood volume, this allows for less drop-off of the markers being watched on the Bio-Passport.
If taking EPO this way means a shorter testing window, then riders are far less concerned about the EPO test.
Basically, it sounds like Landis has given them the info they have been missing.