I think there are a few different levels to the communication problems. The first is there's a general uneasiness about the future of the game we're all invested in. Destiny is a 10 year journey, and one year in Bungie initiated a major change to how the game will be supported and funded - and barely communicated their intentions to the community. They pivoted to micro transactions without ever stating what their line in the sand regarding what can go the MTX route, so people are uneasy with each update and the subtle ways the line has shifted. We have no expectations about what kind of scope the Live team will develop, what their planned cadence is, etc. We don't really know where the game is going. I think the community is still on edge about MTX and are waiting for the other shoe to drop. Bungie doesn't seem to recognize this unease. Deej and company have said they want to keep releasing surprises like SRL, with little to no warning. That's fine, but I think they are making a big mistake in providing no compass whatsoever about Destiny's near or long term future.
The other is in how they do bring out information. Deej is needlessly, relentlessly opaque in the BWU's, obfuscating information when there's often no reason to do so. Why was the release of the challenge modes a surprise? Why was the date of the patch saved for PSX? Why does he say things like "in one rotation of the earth" instead of "tomorrow"? Why are so many changes made to the game without context or explanation (the Great Weapons Parts Famine of 2015)?
The moment to moment communication is really quite poor and seems totally detached from what the community, who are clearly very invested in the game, want to hear. I understand there's a lot they can't talk about. They're not going to announce the next expansion / Destiny 2 plans this early. Their long term roadmaps for the game may still be in flux. But it just feels like there's a fundamental disconnect with what the community is interested in and what ends up in the BWU's and other communication channels.