I can understand that, but I wouldn't call the back half of the album electronica.
My brother (who is also a big fan and is going to the concert with me in March) were talking about them yesterday, and we agree that, while The King of Limbs is good, it simply doesn't wow either one of us; there is nothing on there that is "holy crap, this is awesome" level of great. I think Staircase and Supercollider are easily the two best "new" Radiohead songs of 2011.