I don't think there was much more they could have done given the current standards and practices. I think, or I hope, they will use it as a learning experience so that should something like this ever happen again they could maybe make things better, like getting the toilets cleaned and more food and water like Delta apparently managed to do.

I know there are people who believe the folks at Bradley should have had a plan in place for over two dozen planes being diverted from Newark and Kennedy without notice as a major storm rolled in early causing power outages and 1,500 people seeking shelter in their unheated terminal where the only food was what was left at a McDonalds in addition to those stuck on the planes, and international planes being diverted there they could not handle all in two hours.

The reality is I don't think any airport would have such a scenario in their disaster plans. If they did something like this in a movie, there would be threads about how impossible that would be to happen, how no airport would allow that, what a stupid movie, etc.

In the end, lets hope they learn enough to keep from repeating it, but it's pretty senseless to try and assign blame for something nobody could have predicted.