the half that isn't joking is correct. In the Moratorium II document Salazar specifically points out that Nov 30 is the end of hurricane season and thus contributes to his justification for the timeframe on the moratorium.
the official view in at least one v. lg. O&G industry company is that the effective duration of the moratorium will be much longer. I wouldn't count on (m)any democrats winning (re)election in AL, MS, LA, or TX in Nov.