While you obviously do not want to dawdle getting to the ground you still have to set up a survivable forced landing, which will obviously be harder if you start trying to transition to the forced approach profile low to the ground doing VNE.
My thoughts too. If I had to get down very fast, it would not trouble me to exceed Vfe by 20%, and slip aggressively. I would do it dirty, as the forced landing area I had chosen would very certainly slide under me by a mile pulling out of Vne.
I think there are lot of more more likely emergencies I would train for in a GA aircraft before engine fires. Were my opinion to carry any weight, I'd discuss considerations for and engine fire, and then move on to something more common....