You people are overthinking too much haha. Resetting an E-Stop is easy... once the fault causing it has been taken care of. There's only a few things that would lead to an evac on a ride as simple as Hulk. Something probably stopped working that required a repair that wasn't possible with guests on it. Example: A loss of air pressure would stop the ride from operating, or a bad converter or relay or proxy switch. Those are things that wear out all the time and cause faults. While replacing those small components would only take a few minutes, you would not want to run the ride with guests on it without cycling empty first, hence the need for an evac.
Rides don't run directly off computers... they run off PLCs. Two different things.