Agreed. Perhaps buyers know that this is not the “bottom”. Perhaps Boeing know they can weather the storm a bit, and are not selling thinking they can reopen for 737 business in a soon to be better climate. Lots of possibilities.
Bottom line though, 737 WILL be fixed, and Boeing will have to take a big hit.
That’s why negotiating is SO hard. Future is obviously unknowable. You don’t know that your opponent is holding. Seller doesn’t know what the competition is doing.