no, it's not - car with RWD is better balanced thanks to spinning drive shaft under the car. Handling and safety is much better because of that. Also it's superior to have separated power and steering. In FWD when you skidding you out of both - power and steering, in opposite to RWD.
Why do you think would they do RWD only in high end vehicles like BMW, Mercedes etc.???
Been driving in the past in car racing on RWD car and I can tell there no comparison whatsoever between RWD and FWD car - the latter is manufacture only because it is cheaper.
p.s.
also with RWD you can easily control side drifting with the steering wheel and accelerator without using hand break.