may/might confusion

[sagehen]

AG Ashcroft suffers from this increasingly common complaint, causing him to
say, absurdly, that " had not the other passengers" aboard the plane
prevented his doing so, the  would-be shoe-bomber "MAY have succeeded in
bringing down the plane".....
To which I say, had anyone not familiar with this story been relying on
Ashcroft's  description for their understanding, they MIGHT  well have been
pretty confused about the outcome.
A. Murie