Not microdosing.
I see it has been responded already.
It is use to cover up when you infuse blood into your system. Your body sends the signal to stop (or reduce) producing red blood cells because you already have outside help (blood bags) so the Retics go down, and that can ring the bells of the bio-passport. That's why they use EPO micro doses, to stimulate the Retics with infusion of blood.
This has been explained by Landis and Michael Ashenden.
But the amounts reported here were kind of large so we can conclude:
1- He had a side business with amateurs where testing is easier to pass.
2- A portion of that amount is still for the BMC team for microdosing.3- A portion if not all could be for more than one team in the pro-peloton. If it is used throughout the year you might need quite a bit.
4- Endless applications in sports.
Note for starters: Definition of Retics.
http://en.wikipedia.org/wiki/Reticulocyte