de facto:
....But, no competent performance engineer would permit that to happen
Said competent performance engineer is presuming that the pilot is NOT going to push up the throttles ...
If the aircraft is at V2 (or slightly greater) Vmca is not a factor with an engine failure. If the takeoff flight path is obstacle limited then not increasing the power after an engine failure will limit payload, or perhaps cause the takeoff flight path to fall below minimum regulatory requirements. V1 must be above Vmcg and V2 must be above Vmca, otherwise the takeoff flight performance calculations are bogus.