My humble opinion is that the Chief Exec could not have done any more. He ran a good airline, and treated his staff well.
I think the banks acted in a short term way, because - as usual - there are concerned about the next three months profits and not the long term. (Unless of course they want bailing out and then it’s different.)
PS Don’t mean to start a debate on this, but Phil Wyatt was the first airline boss (that I know of), to stand up to the disgusting practice of 'forced repatriation', where refugees are forced to return to lovely countries like Zimbabwe. Good on you Phil.