But most "extreme" sports are those where as much actual danger is removed due to setting, kit, rules, styles etc.
Change mountain biking to "drive your bike over a rocky ravine and see if you survive the 30ft drop". Not so many takers, but I'm sure there would be a few stupid people, who would soon become stupid dead people, and then the problem goes away.
Yes there's risk. For the sedentary population who's idea of sport is watching a game on telly and downing a few beers, it may even seem violently extreme, but really - who wants to participate in a sport where you want to run a major risk of serious injury every time you play or (getting back to the subject of the thread), get injured by people who ignore basic safety rules? Fancy a "no goggs" game of paintball for the ultimate extreme challenge? Neither do I.
I think paintball's after the type of people who skate in-line, snowboard, BMX, etc because they are the type who are more open to sports not considered "mainstream" (and good for them). Given the popularity of "X-games", it's prudent to orientate tourney ball towards this (style, venue, clothes, vocabulary) as it's attracting lots of people at the moment.