Is "the dragon" a specific dangerous bike route ? Or what is it ?
The road itself is not dangerous. Well marked for speeds (limit is 35) and when a sign says "15 mph" you are well advise to do 15 or less, unless you are really sharp with your skills.
Main problem with the road is the high number of vehicles traversing it with less than appropriate skills for the speed they are traveling.
Then you have the shots which tend to be a menace to the rest of us, and the "trucks" who make it outright dangerous on the many blind curves.
It is a no "sight seeing" road, eyes on the road and your complete attention, no day dreaming.
It's reputation has been more inspired by the Internet then anything else and as so, gets a lot of attention.
I rode the "Dragon" many years ago, long before there was a "Dragon", and it was no different then then it is now, 'cept for the traffic.