I think that these sorts of video's are a step in the right direction - the concept of involving the leadership with the community is a good one and helps to build both trust and anticipation about MA's plans for the game.
That said - this video was a miss for me. A LOT of hot air and not too much in the way of real, tangible outputs.
I'd like to see the community manager leading more on this and giving us weekly (ok, monthly?) video installments where they are transparent about what they're working on, how its coming along and what we can expect - and then actually delving on those promises! Keep in mind too that the community will understand when thing are taking longer or don't quite work.
Just look at CD Projekt Red. I know it's apples and oranges but MA should take a leaf out of the CDPR book if they really want to learn about community management and retain an excited, loyal fan-base. Not to mention generate buzz and grow the community more widely.