That gal made the wrong person very mad. This sounds like retalliation for something. If only one person doused her and set her on fire, I could believe crime of passion of some kind but with two assailants and, due to the nature of the assault, I have to suspect that they were acting under orders.
Very little data to go on, but it *is* possible that she "made the wrong person very mad", simply by being what she is, an exotic dancer. Bear i mind that there are certain folks coming in with their own view of how things should be, and a track record of using violence to achieve their aims...
the infowarrior