I'd be for it, I am sure a fair amount of people are clicking that "In progress" button for the towers. Even if you go in with half a group those who are AFK will be kicked or booted and I can only assume quickly replaced with the single people going solo. However also as stated, they are fairly easy and could probably be done with just 16 people now if it wasn't for some gimmicks like Labyrnth and the pads.