Rob_Dentsu, try not to confuse the speed of delivery with the lack of care for feedback. There is no other team in the Office Apps and Services division with more resources than Microsoft Teams. Believe me, they want to get Private Channels right before they release it. There’s no better place for our feedback to be quantified and publicly discussed in one place than UserVoice.
Let me ask this though. Would you prefer that Microsoft doesn’t add updates as regularly to the suggestion in UserVoice? That they should only post an update when they have progress to announce? Would you like more official comments and transparency on the complexities they are dealing with? There is a line that has to be drawn in how transparent Microsoft Teams can be, before they expose themselves to their competition and give away competitive advantage.
Rest assured, Microsoft are actively testing Private Channels in ‘Private Preview’ with a number of their customers, at scale. It’s just they can’t talk about it, nor can their customers talk about it, because it’s private and occurring within a private channel of it’s own if you understand my meaning.