It's not that simple when you are talking about a ride that dangles passengers 300ft in the air. I am going to assume that they had to lower the car by gradually releasing the brakes (as it was designed) to ensure that there is little chance of a failure due to someone being careless.
Not according to this article:
Dills, an engineer, followed up with the safety agency. He said the investigator told him that the agency was looking into the incident and that one of the biggest problems was that it took so long to return riders safely to the ground, a job that should take 30 minutes.