The thing about DA's post here (and leaving aside this very unfortunate "accident") is that it's actually not overblown hyperbole, at all. Stack DOES have all of these attributes. Other posters have mentioned his composure - it's the DEGREE of that composure which is so remarkable, especially given his age.
For those who reference a possible concern about getting a 'big head' or whatever, well fair enough I guess. But that's another thing which came across from the RFC interview. Okay it's only a couple of minutes, so who knows ultimately, but from that, he just doesn't seem the type. At the same time, okay let's not lay too much on the kid, AFL is a tough gig, god forbid he might get injured - how would he react to that - and so on.
WITHOUT saying or suggesting anything, but just putting out a comparison, compare that interview with say Shai Bolton's recent. Again, I'm not saying anything 'bad' about Bolton, but of the two, you'd have to say Stack presents as a smart, level headed, tough, confident without being arrogant hombre. There's some significant mental strength there, from what I've seen.
About the only 'query' I'd have would be, where he plays at the moment - his position. Maybe it's...easier to shine, arguably. I'd be interested to hear from those more knowledgeable than me, just where they could see him wind up. Or does he need to to be able to move somewhere else anyway?
It is a bit of a mind boggle, thinking about him improving, which he will, surely.