I can't agree with this. (I know you didnt ask me to either). I don't believe this is true. Maybe a one-off glitch? I've been using that theme for ages and I still get my 2 days the way I use it. It could be that your phone required a good few reboots to freshen up. Why not install it again and see if the same happens? But honestly, I firmly believe this isn't the cause of your battery drain.