Yes, the system so far has worked in a sense, but our democracy has only survived by the skin of its teeth and there were many casualties in the process. Meanwhile, it is not over. All these people, voters and politicians alike, who have tried to undermine our democracy are still with us and they are still a threat.
Many will try again and they have a lot of money and power backing them up. The next time, and there WILL be a next time, they could succeed. We cannot relax our efforts. This is just a battle in a very long war.