Twitter was dying anyway and it needed to be saved from itself. With Jack leaving, earnings around the corner and with this final offer. It was exactly what they needed as if they rejected this only offer, it will certainly crash the stock anyway with little room to recover.

As much as the rats don't know where to jump for alternatives perhaps it's better to just sit on the sinking boat to see how far it goes before it has completely sunk or whatever refloats their boat.