Do link any and other other relevant analysis and commentary. While the speculation in motive is strong here, the data/research has checked out so far to my level of understanding.
If the vote had passed an interesting collateral concern/relationship would have arisen in that the burn penalty would roughly peg the net present value of a vote to an amount of ETH.
Unburned NAV = ETH + Vote
Burned NAV = ETH - Burn Penalty
DGD Vote = Burn Penalty