Alex Honnold is a very fine, skilled climber - no question about that. I am pretty sure that most people see solo, unprotected climbing as dangerous.

It really comes down to one's tastes and preferences. Personally, I enjoy the teamwork and camaraderie of conventional roped climbing with protection and belays (and good helmets!). That mode of climbing is certainly not without its hazards. I'll bet most climbers have done some solo climbing on occasions, although not at as high a standard as AH.