I agree with your take on this,
tucumseh . This ticks all the boxes for "misadventure". A pilot that made non-deliberate errors. An aircraft with a dubious airworthiness status. Display planners that thought it was OK to display so close to a busy main road. Nothing I've read suggests a deliberate act by the pilot. Careless certainly, and opportunities to avoid the accident were missed. Carelessness runs right through this tragic accident from several parties though.
One thing we've learned many times is that carelessness and complacency go hand in hand. This accident proves this, yet again.