Sliding discussions on mobile should slide over channels like they do people

So the sliding discussions is really cool, but I think they should slide over the channels and subchannels list like they do to the list of people.Here, the channels move with the discussion, but the people are overlapped. It would be cool if the channels were overlapped like the people list, so it would show the importance of the conversation.

edit: it wouldn’t matter about accessing anything since setting can’t be accessed when  the list of users is visible.