Yeah, I'm not sure what's up with the last-modified detection but it's definitely picking up false positives somewhere. I'll clean it up for now and look into what's causing the errant behavior sometime this weekend.
@Lyya, Mongo can be added to the console database. There was no formal announcement but he has been added as a mailbox bonus with patch 2.2. This post is the best confirmation I have as @Stan hasn't updated the console troop thread yet : http://community.gemsofwar.com/t/console-2-2-patch-notes/20637/57?u=gametagwastaken
I'm on it. It sounds like there may have been some other troops dropped into chests and I'll update the list as we get confirmed reports, or better yet, confirmation from a dev.