Sometimes a torch will go out when turned over to light the coals. That is not a design phenomenon. To prove it, turn the torch over while holding it out in open air. The flame will not go out. What happens is you use up all the combustible oxygen when holding a torch deep down in a grill, unless you have all the vents wide open, and all the ash knocked out if using a previous bed of coals. You just need plenty of fresh air and good air flow to sustain the flame.
The torch from HF will not go out.