The US Contitution was written when communication was very limited and slow. Much of the population could not even read, and the logistics of these meetings for government restricted their frequency. Travel to and from these meetings and size of available accommodations were a large part of the restrictions on the design of the rules written into the Constitution.
The solution was a representative form of government, where one person could represent a group. It was the only way to manage a meeting for a large number of people . A representative had to be selected by smaller groups to attend meetings. This situation resulted in the rules of conduct set down in the Constitution, but with the Internet, this situation no longer exists, as every interested party can now be present in every meeting. We no longer need representatives, we can represent ourselves. We actually don’t even need a President.