Personally, I most likely won't be at the 'meeting', because the second half of the day (12:00-0:00) in server time is the time I happen to take to sleep and go to school (3:00-15:00), and I'm not going to stay up all night and take the day off just so I can be there for the one day where we get to do forum in-game. Not to mention, of course, people like Awiiya and Zleip who have roles dependent on the locations they are in.
But then, from what I can tell, this will be Mur letting off a bunch of steam by taking it out on us, which I honestly don't have a problem with; if he needs to send 20 people to jail to feel better and get people off of his back, so that he can continue work on items or whatever, then it's going to happen whether there's a gathering to talk about it or not. So sure, this could be handled better, but we should probably be glad it's being handled at all. He could just take the fast track and punish people on his gut feeling, and what would we be able to do about it?
All in all, yes, I'm a bit bothered by the word choice in the announcement and it was perhaps wrong of Mur to say that, but it doesn't particularly matter; at the end of the day, YOU know if you care or not, and there are more ways to prove it than attending a witch hunt.
Edit: Worth keeping in mind is that I'll probably by shouting about unfairness afterwards, regardless of what I'm saying now, so yeah.