I imagine these airports are now surrounded by so much other stuff that they will not be able to expand that buffer zone.
Like I just posted above, some airports have wanted to relocate but no one wants them in another neighborhood. When Denver put in their new airport, which was quite a way outside of town, everyone complained about the time it took to drive there. Can't win either way I guess.
I guess the main question here besides the buffer zone especially at the end of runway is whether they should have landed in the weather that was reported as dreadful.
What really gets me is people that move into a neighborhood with an airport in it, and then complain about the noise.