Let me chime in here: at the very least allow all users to create channel posts from tasks. Comments in Planner have been a confusing experience from the start. And seeing as a lot of organizations are still struggling to move from group chat into channel collaboration, enhancing the integration between Planner and Teams would be a great nudge in the right direction. But this is IMO a basic feature of Planner. If we can create a Planner task from a channel message it doesn't make sense to have the reverse scenario be a premium feature.