The remote controller being stolen while they were on alert is... funny, I guess. Anything can be written as long as it will disrupt the progression, that was the rule from the beginning of this series after all.
Wow ... What an epic fail that was, why the hell would they not keep a closer eye on "the key to their victory" ... seriously a grunt stole the remote while they knew full well their was a spy among them.
I wonder when that particular scene in the 1st chapter--where kanna woke up in bed then seeing the silhouette of the robot--will happen. but it's pretty unlikely