Not understanding electricity can get you killed some of the time...
Having the main egress and emergency escape on the same side of the boat wasn't the best design.
Smoke detectors (did they have any?) below deck would have helped.
And if an alarm did go off 34 people without emergency training rushing to escape in the smoke and dark would have been a scene from a horror movie.
It was a tragedy waiting to happen.
Hopefully they design flaws and emergency procedures will be fix on similar boats.