It is sheer stupidity! As with any extreme sports which is highly dangerous and life-threatening, many had ignorantly turned to this kind of sports for the thrill, excitement, the unknown, challenge and so on. In the final analysis, it is all about feeding the egoistic mind with deluded pride!
Our human life is too precious and rare to lose in these bull runs! Furthermore, these bulls had suffered tremendously for the purpose of this festival and will eventually end with death after the end of the festival.
The organizer and the local government are only perpetuating a tradition that is detrimental to participants of the festival. Those who are involved directly or indirectly in these bull runs will definitely experience heavy repercussions from torturing and killing the bulls.