I actually think medical rookies is an excellent show. It gives young medical-hopefuls and idea of what's waiting for them after universtity studies.
Also, the surgeons and other doctors are not "rookies". They are training to become specialists and make up a HUGE percentage of the medical staff in all hospitals. These registrars are not rookies, as they have been observing and assisting in operations for MANY years.
Yes anyways that's my view. Then again I might be a bit biased as I want to become a doctor