Honnold soloed a lot, and to a high standard, before people started filming him doing it. It only becomes a problem if he starts soloing routes “for the camera” that he’d normally shy away from because of the nature of the climbing or the looseness of the rock.
I used to solo a lot, to within a grade or so of my normal roped leading grade, looking back there were some definite “Uh oh!” moments – usually these weren’t on the harder routes but something several grades within my comfort zone, the type of ground where you’d mentally switch off.
Soloing goes through cycles: it gets popular until someone, usually famous, dies and people step back and think about it. Then memories fade and it starts to become popular again.