They are still full blood Ameraucana's. They are just not one of the 8 primary breed colors. So they could not be showed as Ameraucana. By the standards of calling these Easter eggers then lavenders and all other color offshoots are Easter eggers.
What makes them FULL BLOODED Ameraucanas??????
You are correct Lavenders according to the APA are EE or Project Birds, the difference is they breed true. EE will not breed true. When you start mixing birds to get EE you don't know what color chicks you will get. For example That black pullets with leakage and that white roo with leakage will not produce anything consistent..... You could get anything from that white roo... he could be ANY COLOR under that white.