If there was a common problem present in all the buses that could cause a fire you can bet Disney would ground the fleet. However, in the case of the Disney buses not all are the same make and model so realistically that would never happen.I'd be pretty unhappy if I went to AK and the safari was shut down all day. I could understand EE closing, it's a roller coaster and if there is a technical problem, by all means, shut it down (I wouldn't be happy about it, but I'd understand.) But KS? It's trucks and animals. How could it be closed?
It would feel like if one of the Disney resort buses had a mechanical problem, so quick, let's shut down the entire transportation system.
I understand Disney has to be extra careful, but shutting down KS seems like shutting down all of AK to me. At least the incident happened later in the afternoon yesterday, so it really only closed an hour or two early. If they keep it closed today though, I feel sorry for the people visiting AK.
In the case of KS all the vehicles are the same make and model. Wouldn't you would expect them to shut down E:E if just one train lost a wheel so they could inspect all the other trains? A fire due to a mechanical defect on one KS vehicle will prompt the same response. Disney would have been negligent to do any less.
This also happened at around 4:00 and KS was due to close at 5:15 anyway. In actuality all they did was close the ride about an hour early. Quite a small price to pay IMHO.