there's none of the richness and deep complex layers of their relationship Certainly not. Not only was there not time, but also, I don't think we're ever going to get a relationship of that kind that's that deep and nuanced again.

But your breadcrumbs are so interesting to me! And yeah: he should have gone more into it if he expected us to invest.

On the other hand, maybe he just threw that scene in to apologize for recent developments in the Season Eight comics "cough, Twilight, cough".
Hahaha!