Can we talk about the nitro without getting explosive?

First off. How can setting off explosives anywhere near the crevice help those trapped escape? Surely the risk of further landslides and burying everyone even deeper would be make the idea of blowing a neat hole futile. Then there is the likely hood of rubble or the walls collapsing in on them as well. You could argue that it's a risk they had to take but no rescuer in their right mind would attempt for fear of causing a landslide and killing themselves.

Second. The stored nitro was dangerously unstable yet after the incident of the boot there was no containment of the area; everything in the Pakistani camp just carried on as normal. I assume the stuff was stored in that shed for some time. How come suddenly does sunlight become an issue not having occurred to anyone before until BOOM!? Apart from sunlight I would have thought that all that liquid dripping on the floor would have been a prior cause for concern anyway.

I could see the sense in each rescuer carry nitro - increases the chances of at least one person making it. This scenario was used in Henri-Georges Clouzot's The Wages of Fear. A shot of a piece of paper blowing from Elliots hand due to the blast is a direct steal from the same film - a clever touch but did not have the same impact as we already saw the explosion.

This movie has been well and truly pasted here, so taking everything into account, maybe it's hardly worth talking about the nitro - just one more silliness.