There are, in my opinion, only a few situations which require immediate action in an aircraft such as rejected take off, GPWS warning, windshear etc.
I'd say there's one more, which is
cabin fire.
From the start of vibration to impact you had some degree of smoke in the cabin and cockpit. Given the horrifying result of even a few seconds' delay at Manchester a few years earlier I think you can forgive them a desire to get back on the ground as soon as possible.
I'm not saying the actions of the crew were perfect, and with 20/20 hindsight it could be argued that they were lacking, but no-one else will ever know what it was like to be in that position at that time.