An integration with current chat system (Slack, Teams, etc.) would be neat. Changing where the work happens is a big ask in my opinion.
I don't want to speak for the Muddy people, but I wager they probably think chat app is kind of miserable experience. This instead tries to have a superior offering of something cleaner, easier to visualize where things are, and then move that "slack/teams" type convo to specific comments and tasks.