Someone died on a Walt Disney roller coaster

Apparently a man died after riding Big Thunder Mountain Railroad back in February and Disney just released the news. He had preexisting condition, but that still doesn't make me feel good about the rides. More details in this link but stay safe everyone: http://www.nydailynews.com/news/national/walt-disney-world-reveals-roller-coaster-rider-death-report-article-1.3091726