It really is quite simple.

The board in the EV is the legal entity.
The board is elected by all members.
The "council" is all members
Members are all registered users
Users are all that submitted membership form
All members have a vote
Vote is given at the GA
Board must adhere to the vote result - except if it is not legal for whatever reason
Board members can disagree, if board allows illegal activity, each individual board member can have his disagreement noted, eventually may decide to resign from board as such.

The council that is / was doesn't really serve any purpose once the EV is complete. Until then, yes, it can assist all users as an organ towards board. But, this is only because not all (I guess few) users signed up to be members of the EV.

Of course, the board COULD have an advisory-board. Which COULD make a function for the council