Try telling that to some of the more "nervous" controllers!
Well I don't blame the controllers... It won't ever happen that a GA a/c, IFR or not, will have the same priority of an a/c engaged in commercial operations.
That's nothing wrong there; commercial traffic must have priority for several reasons: they have paying customers on board, willing to get on the deck as soon as possible, they're much faster that a GA a/c and it's much easier to vecotr around a twin light aircraft that to make slow down a B747; moreover it's much more cost effective to put on hold a twin a/c waiting to enter CAS, than a B747, burning tons of fuel and money per hour...!
I bet that in ATCO's manuals the priority order in favour of commercial traffic, is written somewhere, as it should be!