Q,
Correct.
Until it is, the interfiling request will just sit in the file.
In practical terms, it means that all interfiling requests received after May 2012 with a PD of September 2004 or later are invisible to the Demand Data, since a visa could never be requested under EB2.
Those with a PD before September 2004 won't appear either, since when adjudicated, a visa is immediately available.
I doubt very much whether they appear in the USCIS Inventory as EB2 either.