Seems like in the position they are in, this would be another pass through to the taxpayer/funny-money basket GM is currently in.
We might better be asking why not sell this GM thing to the highest bidder or coalition of bidders (should they want it parted out), even at the cost of eating a loss and doing a taxpayer fund of the fix/compensation. It isn’t too big to fail, though it probably is not too bad to find itself reborn.
Very interesting take.