Meh, I don't blame TBN on this one.
You're naive if you think the Sabres organeyezation would give important info about players with the media and cameras there. They gave Jeremy access until noon, before they actually did stuff beyond pick up the local kid off waivers that everyone expected. And probably mentioned whatever that one player is for lolz.
The media got to play pretend GM, and the Sabres just gave 'inside info' that this staff knows what they're doing and have fancy toys.
Jeremy had to agree not to reveal what he heard in the room. This is SOP in journalism.
The big difference here is that TBN couldnt because their journalists are more connected to the outside world than Jeremy is.
Jeremy refers to a name that likely would mean a big blockbuster type of deal (that could come up at the draft again).
TBN staff may have word of this through other sources (other teams, other reporters, their networking with people around the NHL). If they hear about something from the war room and three months from now prior to the draft they here reports of this name resurfacing in possible trades---can they report it without breaking their agreement?
This is the crux of the problem and why they declined. If they already knew about some info they didnt report such as sabres showing interest in player X they couldnt report what they knew if it comes up in this meeting.