If someone asked me what Path of Exile's greatest strength was, I'd answer with just one word: depth. The breadth of choice and volume of interesting interactions between skills, supports, passives and items are what differentiates Path of Exile from other games, and what keeps players coming back over and over again. Path of Exile's greatest weakness, on the other hand? Complexity.>
Even now, I completely agree. They know it's the reason their game is great and the reason it is niche.
It might be but they've been doing a lot of these round ups lately. I think it's partly a way of recapping their history as they get ready for PoE2 and partly for marketing, since there really isn't much going on.
I do wish they would trickle feed more PoE2 info, but it seems they're saving it all for Exilecon.