Thunder Bolt
Silly old bat
As someone who keeps as close an eye on the club as you do, I'm surprised that you thought it was strange. We've often given improved terms, generally packaged up with a contract extension, to our best players. It helps protect our key assets if nothing else.
I think it was because he'd had a bad injury and there was two years left to run. It seemed more common sense to wait until he was up and running again.