I wonder how likely it is that council will have members, which are not participating in the current meeting. This is a critical question because according to this proposal the penalty for not being able to reach consensus would be harder on those members of a council, which participate in the current meeting, even though non-participation of council members is the thing that might make reaching consensus on proposals hard or impossible.

To reach 2/3 of 12 we need 8 council members. What if more than 4 council members are not participating in the current meeting? Reaching consenus is impossible and the penalty is actually less severe on members who caused it (they were earning less that week, because of non-participation, therefore their penalty would be smaller).