Wait really? Hmm, I couldn’t find a comprehensive report of the 2015 Legendary Truth experience aside from maybe
this one (posting quote below for anyone interested in the Fear lore), all I figured was that a lot of artifacts from the
evidence room were from 2008, which to me didn’t really confirm that
she was the one who freed everybody. But I guess she did.
In fairness Bloody Mary herself wasn’t actually “seen” in Icons Captured, only a couple of mirrors were.
Actually wait did the lore for 2010 specify if it was only the Icons who were trapped in the lantern or that the Lantern itself contained literally every single being and place of Halloween Horror Nights canon? Then again maybe this would shed some light: