Whilst its true Track riding is safer for the faster rider who likes to take risks , its not necessarily a safer place to ride for those who are careful riders. WHY? Well the safe rider rides well within his/her capabilities on the road , positions themselves at the correct place for bends with a good view and adjusts speed accordingly, will be completely aware of his/her surroundings and whats going on, will always anticipate the worst and be aware when it happens (within reason).
The same person comes on a track day and rides a little faster but not as fast as some of the complete idiots who treat trackdays as a race (and theres at least one every session ive ever attended) this person will invariably cut you up and take risks on corners, you will also get a few riders all taking a corner at the same time, causing some less experienced riders to alter their line or even panic.
This makes in THIS instance the track more dangerous, I find I am MORE likely to come off on track than I am on the road, On the road Im OK not crazy fast but not slow ive had a few near misses but because I've anticipated I've not come a cropper. On the track I would ride a lot faster because of the lack of obstacles, and in any event its been said on here exploring the capabilities of your bike means, you don't know how far you can lean until you run out of lean !! Then you know the limit But will you remember how far over you were ? I doubt it!!