I liked the livestream. It showed old stuff, yes, but it was supposed to work also as presentation for people who didn’t know much about the game. And (according to the chat) there was many of them…
We saw also Sázava monastery, that is new. Previously we could see it thanks to the glitch, that could get us over the wall restricting Beta access over the map. Certainly we could not see it that detailed, and feedback in chat certainly proved that (possible) dining room with painting on the walls was astonishing. Brilliant insight to the quest, where you have to get into monastery, either by infiltration or the hard way!
Also some new possibilities about fighting mentioned by dev (Martin?) pointed us toward polearms and horseback combat. For me, this was brand new information, last time I have heard polearms might be in the game, but nothing closer.
So for me it wasn’t waste of time. In fact it was enjoyable, even more when I watched the stream and compared actual real photos of Sázava monastery. Maybe you can add also some similar comparison next time, picture how does it look like today and how does it look like in game itself. But that’s just idea 
