I agree there are more options than only returning to the airfield.
I don't agree in the Sioux-accident. The crew found a way to steer the aircraft, and used that possibility to get the maximum out of the situation. Have you ever seen a crashlanded airliner, where everybody got out unhurt? In the same situation, given all the knowledge we have afterwards, I would take the same decision als capt Haynes did, it seems best to me considering all factors, including the uncertainty of the outcome he had to deal with.
In the Concorde-crash I wasn't aware of the FO repeatedly warning the captain of the approaching stall. This would suggest that the cockpitcrew, or at least part of it, was aware of how grave the situation looked. In that case you can be right, maybe a straightout controlled crashlanding would have been better.
More generally seen, I agree with you that creativity (and having your mind set because of training prevents this!) can only be helpfull in an abnormal situation.
P77