Seems to me this is a pretty good example of how questionable practices, often a bit shy of outright error or outrageous risk, line up to allow a major loss.

Among those that might be listed:
1) Fire/evacuation plan was not established and practiced. (This would have influenced 3,4,7 and 10.)
2) Highly flammable temporary structure used for living.
3) No fire extinguisher present.
4) Building has only one exit.
5)Stove of questionable reliability and safety used for cooking.
6)Stove not fastened down or made stable.
7)Most probable source of fire located near the only door.
8) Dog allowed near unsecured source of fire.
9) Sole light source located over most probable location of accidental fire.
10) Reserve light source not readily available.
11) Second source of communications not maintained in safe location.