Here is a link to previous discussion on the case
viewtopic.php?f=34&t=87204&p=495502#p495502It might be that reviewers find the content of your channel objectionable and have referred the case to the higher-ups for review. My understanding is that RokuCo frowns to adult/mature audience content and would not make such channels to be "public" nor will approve "Roku billing" for "private" such channels. Instead they'd be encouraged to stay private and BYO billing.
By the way, i don't think RokuCo is required to approve any channel for public distribution, unless they so please. I.e. there is no guarantee even if following certain guidelines that the app will be accepted. (Check with the SDK agreement and correct me)
From my personal experience i can say about the Roku people i was in touch over publishing an app of mine - each of the three people i exchanged emails with - they went above and beyond what i imagine their job description requires. They flagged me about minor omissions, gave feedback beyond show-stopper issues etc. I even took some to-do ideas for next version from that. There was no ill-will treatment. And yes, i hated the long wait before review and cannot excuse that on corporate level.
To you, @maidennetwork - keep emailing your Roku reviewer contacts regularly when you haven't heard from them. Say no response in week - email again. And again next week and so on. I venture guessing they dropped the ball on some of your emails, it happened to me once or twice. Also, try scoring a phone conversation with their developer support - that tends to resolve problems much faster than playing email tag.
To Roku reviewers (free advice; it's worth every penny!): "Fantasy abandoned by reason produces impossible monsters". Not answering an email, the lack of feedback leaves the imagination to wild speculations, conspiracies, "evil empire" etc. Can you possibly adopt a protocol to answer all emails within couple of days? Not with a resolution necessarily - but even with a one-liner like "we are working on it, will hear back from me in a week" or "too busy now, ping me in a week" or "no update on your case yet, wait another dept. feedback - check later". Or the pent-up anxiety leads to outbursts here (or worse - social media) and development focusing on other platforms where review times are below 2 weeks or there is no curation whatsoever (like google play)