I call shenanigans.
Ok really though there is an enzyme that isnt/wasnt found in nordic people that is found in other cultures around the world that break down the good stuff in peppers. Simply said some people can not digest peppers properly. Im sure the enzyme can be introduced and is probably passed on from mothers milk or something in cultures that eat peppers but nonetheless...
Anywho, as some have stated drink enough water and you will die and it does happen from time to time. Eat or drink anything in sufficient quantities and you will die, it just most people dont.
Really though, I am kinda sick of articles like this as peppers have some amazing health properties to them and articles like this just propagate fear. Look at the link on that article about health impact of hot peppers and it doesnt point out any of the documented good that peppers do.
Anywho, my 2c is its just another scare article for ratings. See it all the time for any other thing in life so why not for super hots...I for one will continue to enjoy my super hots!