This is surprising to me.
Seems like more savvy airline purchasing departments would negotiate some new orders in this environment. 737 max's are NOT going away. They are injured now, putting purchasers in the perfect negotiating position. As in a "buy on the dips" kind of way.
It might be the buyers knew the quarterly results reporting date was coming up, surmised that it would be bad, and could be using the bad results to further enhance their negotiating position as we type.