I have been stung on the foot by Apis dorsata in Borneo, it didn't hurt any more than our bees. They have the unnerving habit of sipping sweat, which us pale European types do in buckets in that climate. Saturated clothes hung to dry were covered in bees and other insects sipping up the salts. I was stung on the foot when I went to the toilet, bees and ants were in there too sipping salty splashes. Nice.
The bees nest in a certain pale barked type of tree (the bee trees, as the guide called them...) which are left alone because they don't give good timber and presumably give lots of honey. The trees are huge as are the nests and the job of removing them from below the branches must be far more difficult than the cliff face on the video. The honey itself is the nicest I have ever had and is sold in plastic corked soy sauce bottles. And it is cheap.