However, I disagree that any group larger than about 250 people can get anything useful done, whether they meet face to face in a single room or not. I also don't think that a body of 6000 voting online is going to produce nearly as good quality legislation as a much smaller body meeting in person. So I don't buy their 'solution' to the problem.
What I do buy is what's actually happening now. The states are starting to take the lead (where the ratios are much better) and even cities and towns are taking matters into their own hands and starting to do quite well with things like restorative justice, sustainable energy, better management of waste and recycling, minority rights, and so on.
Even in North Carolina, where the notorious HB2 (legislation restricted transgender rights) was passed, it's easy to forget how it all came about. It started when various cities and towns within the state voted to protect those very same rights. Legislators in their state capitol voted to quash those rights, state wide. So guess what? I predict that it won't stand, in the long run. The will of the people is really for tolerance and support of diversity.