Snark aside, he was averaging about 24.4 miles per day. I seriously doubt the riding was what killed him.
Ignoring chest pains is a pretty stupid thing to do.
Isn't it more like 40 miles per day? Doesn't contradict your point though. What killed him was his reluctance to pay attention to his heart, not the cycling "addiction"
Although, I'd have to say it must have been a huge addiction to compulsively ride that much indoors regardless of whether it's 24 or 41 miles. Yeah, I might understand it for a serious competitor trying to maximize fitness for competition or some other event. But just because someone likes riding?