Could be that the company would rather have agreements than file the 1113e motion.
Filing 1113e effects very little of the contracts, mainly pay. To abrogate the contracts is a longer process - time the company doesn't have in my opinion.
Could the threat of 1113e with larger paycuts than the company's contract proposals be something of a club to get the unions to agree to the contract changes that the company demands? Don't know, but the lack of a filing is interesting.
Of course, the site that has the docket listings could just be behind....
Jim