In so many ways, it must be difficult to share one's grandmother with the world, and to share her intensely with one's countrymen. It's very hard to face the end of a grandparent's life (at least within close and loving families), and we all like to pretend it will never happen. When one's grandmother is, well, an institution as well - it must seem nigh on impossible that she would one day be gone.
After all, the boys' mother is gone, but their grandmother, the Queen has lived on and been a pillar for them. The two princes are no strangers to grief, and it shows in their words and deeds and their interviews.
Hopefully, they will share more as the years go by, and perhaps contribute to HM's official biography (or something of that sort). I think they'll be glad if they do, and I think it's a new sort of historic role for young royals to take on.
Was just about to post that article. In any case, I'd love to read the full story. I'm sure William and Harry have a great deal to share about their grandmother, and their perspective is personal and to me, a lot more interesting than something that would come from a political figure.
