My read, as someone who is in the larpy larp community but wasn’t there and has not talked to anyone who was there about anything specific, is that a couple of sacred cows got questioned.
Which may mean something happened, but maybe just means a few games were mediocre or there was something that maybe could have happened, and now folks are questioning some things they’d taken as granted laws of the form.
I base this hypothesis on the idea that while everyone is talking pretty intently, they’re also talking pretty openly and taking each other’s ideas and suggestions. When shit has gone down for real the tone is usually much more aggressive/defensive.
Also, on the idea that a lot of larpy folks thought a lot of larpy thoughts at a couple of big larpy thought cons, and then rubber hit the road with non larpy and semi-larpy people at Origins. Some thoughts were tested, and now the results of those tests are being discussed.
… shrug.
Anyway, I could be wrong. There may have been larp murder everywhere.