the USA will be forced to reconsider their approach.
Reconsider, perhaps, but change...unlikely. Part of the difficulty is that the entire bedrock of the philosophy is embedded in the judicial branch. It's not just a political decision of Congress or the Executive branch. According to the Supreme Court the distinction between rules that apply to insiders and rules that apply to outsiders is a tenet of our constitution itself.
This puts someone like the President in a tough spot. If he tries to increase security internally he runs the risk of getting it struck down as unconstitutional. On the other hand, if he lowers external security he gets hit with being "soft". The comparison between the Bush presidency and the Obama presidency is a great example that no matter what one does on this topic, the President get screwed.
Not the the head of BA cares. His comments are just a cheap way to score some points among the ignorant.