I have believed it is possible to stay at your home and face a bus fire, so long as you are well prepared.
Well prepared by my standards would be no native trees near your house, a good perimeter of cleared land and most importantly, a petrol driven pump, a back up petrol driven pump, a decent supply of petrol, a good supply of non town water and sprays rigged up over your house, preferably with metal fittings. You also have to be fit and properly attired to fight spot fires and embers. Of course you have to be there and not at work or elsewhere, and, you have to be very brave.
I thought if I lived in the country, that is how I would protect my house.
In a complete about face, I now think that I would ensure that I had the highest level of insurance cover on my property and get the hell away early. It is just not worth the risk to human life.