I don't think it's that bad. Perfusionists have a fairly wide scope. At my institution, they do the CPB, ECMO/CPS (RT does it in the PICU), nitric oxide, shed blood salvage, IABP management and probably some things that I don't know about.
As for off pump CABGs, every off pump I've seen (3 separate hospitals, teaching and nonteaching) has a pump sitting next to the patient, primed with a perfusionist ready to go if needed.