I don't see why a company would go out of their way to do a "late breaking" session to reveal bad data. They would wait until another conference, or just have a poster presentation
Nor would they set a schedule for 5 (count em') five separate sessions to discuss (MS-PD-PK/PD-Rett-AD) all in a calendar period of less than one month. Now, we may not all be corporate geniuses but, if it walks like a plan and squawks like a plan....IT'S A PLAN.