yes in the Australian example given senators are extraneous as currently the Australian system has Senators . As the quote suggests the senators voting role could equaly be performed by software . The system suggested has no need for representatives to cast a vote mandated by the will of the people in a blockchain vote. However someone will need to enact and enforce the legislation approved but that could be human administrators and law enforcement until a better option is created (AI?)
I will add some other examples
Liquid democracy currently being used by Parts of Germany and Denmark "Liquid Democracy: True Democracy for the 21st Century
Liquid Democracy, a subset of Delegative Democracy, is a powerful voting model for collective decision making in large communities. Liquid Democracy combines the advantages of Direct Democracy and Representative Democracy and creates a truly democratic voting system that empowers voters to either vote on issues directly, or to delegate ones voting power to a trusted party.
Through delegation, people with domain-specific knowledge are able to better influence the outcome of decisions, which in turn leads to an overall better governance of the state. Because of this, Liquid Democracy naturally evolves into a Meritocracy, where decisions are mainly made by those who have the kind of knowledge and experience required to make well-informed decisions on issues."
https://medium.com/organizer-sandbox/liquid-democracy-true-democracy-for-the-21st-century-7c66f5e53b6f#.33ocfqjb7
http://www.shareable.net/blog/liquid-democracy-the-app-that-turns-everyone-into-a-politician
"LiquidFeedback (abbreviated lqfb) is free software for political opinion formation and decision making, combining aspects of representative and direct democracy. Its most important feature is the implementation of a delegated voting system ("liquid democracy") which is to establish a new form of political representation and participation that takes into account the knowledge disparity of its participants."
https://en.wikipedia.org/wiki/LiquidFeedback
E-Democracy "E-democracy .... It is a form of government in which all adult citizens are presumed to be eligible to participate equally in the proposal, development, and creation of laws.[1] E-democracy encompasses social, economic and cultural conditions that enable the free and equal practice of political self-determination."
https://en.wikipedia.org/wiki/E-democracy
Delegative Democracy where Liquid Democracy is a sub set
"The prototypical delegative democracy has been summarized by Bryan Ford in his paper, Delegative Democracy, as containing the following principles:[3]
Choice of Role: Each member can choose to take either a passive role as an individual or an active role as a delegate, differentiating this from representative forms in which only specified representatives are allowed. Delegates have further choices as to how active they are and in what areas.
Low Barrier to Participation: The difficulty and cost of becoming a delegate is small, and in particular does not require political campaigning or winning a competitive election.
Delegated Authority: Delegates exercise power in organizational processes on behalf of themselves and those individuals who select them as their delegate. Different delegates, therefore, can exercise varying levels of decision power.
Privacy of the Individual: To avoid social pressures or coercion, all votes made by individuals are private, both from other individuals and from delegates.
Accountability of the delegates: To ensure the accountability of delegates to their voters and to the community at large, all formal deliberative decisions made by delegates are completely public (or in some forms viewable only to their constituents).
Specialization by Re-Delegation: Delegates can not only act directly on behalf of individuals as generalists, but through re-delegation they can also act on behalf of each other as specialists.
Variations on this general model also exist, and this outline is only mentioned here for orientation within a general model."
https://en.wikipedia.org/wiki/Delegative_democracy
With all examples above using blockchain as the voting method.
The main point is there are many modern models out there which are attempting to improve and correct the weaknesses and abuses of current systems and we should know/learn what they are and consider if they are what Asgardia as a Nation should adopt in some shape or format in the spirit of being at the forefont of human development.
Add ..if it was desiriable and I can certainly see the dangers of vote buying we could have a non transferable system where your vote is use it or lose it .