Banks might not have a choice.
Despite their bullying - I am sure they would like to have 100 cents in the dollar plus interest - rather than settle for 30 cents in the dollar in a few years time after the liquidator has been through it.
And remember the banks may be near the front of the queue - but the tax man is in front of them who will want his share of capital gains on any liquidated assets.
Apparently HIH is still in run off.