Why is that amazing?
It's funny that people go on about Ste's age. He's not THAT old and, well, with age comes experience.
On-sighting Nightmayer would require anyone to be more than just young/bold/strong.
Wrt to his high-end sport climbing performance, his single-mindedness, focus etc is perhaps because of his age.
Anyway, great effort going on-sight above that #1 Rock.