Ok, so for what it's worth, several of my husband's data scientists attended. Apparently every year, a lot of proprietary information about analytics is discussed at this conference. So they customarily ask attendees to keep it all under wraps. The guys who went to Boston will be returning to work on Monday to do applicable debriefing, which is fine.
In any case, I asked DH what he could share about Obama's speech. His friends didn't pay a lot of attention, apparently, but it was about diversity and data strengthening cross-cutting ties. Maybe boring but not political. DH's guys are there for the actual analysis and the swag ;), so they don't really care.
Ahh, follow-up: apparently the panel is usually full of "big-deal" sports stars and other people who cost a lot of money to attend. The conference is a stickler for recouping their ticket prices, etc.
As DH said, it's unenforceable, but the brand means they don't want bootleg tapes out there ;).