Bumble bees do sting. A key difference is the sting is not barbed like a European honey bee. It is more like a wasp in the sense that they can sting without dying (at least as far as I’m aware). This being said, a bumble bee will usually only sting a human in self defence if it feels threatened, which is rare).
I’m currently on holiday in New Zealand and there are bumble bees galore here. There are your standard langstroth hives everywhere for European honey bees but I still see many more bumble bees than honey bees.
I haven’t read that link you posted @Faroe but one key risk (as far as I’m informed) with the bumble bee is that they aren’t always useful for pollination of (native?) plants. Their longer tongue/proboscis means that in some instances they can actually extract the nectar without aiding pollination, whereas native or European bees will get covered in pollen and thus aid pollination (but with the nectar gone they aren’t so attracted to the flower…so significantly reduced pollination outcomes)