john smith wrote:
As I understand it, you have already obtained your IFR clearance, you
are just being held for release until the other inbound/outbound traffic
is assured to be clear of the airspace. You have your IFR clearance, you
depart VFR to provide the separation/obstruction/terrain clearance.
Similar to a VFR ON TOP clearance. You are IFR, but you are at a VFR
altitude and assume separation/obstruction/terrain clearance until such
time as you elect to operate at an IFR altitude or encounter IFR
conditions.

That's not what the snippet you posted says. Have you read it?