I don't think it was ever as straight forward as you make it out to be. His agent came out and talked about things like wages and the ambition of the club, and I seem to remember Pienaar getting criticised for keeping his mouth shut and not commenting. The brainless sheep who support us may have thought true bloo, local lad Stevie was going to sign on the dotted line, but I don't think that was the case for the clued up brothers in Blue. No way Jose, Baxter. Moyes was making noises about him leaving long before January, we knew what was happening, lets not kid ourselves.
It's just an easy excuse for poor preparation on the clubs behalf, really. Blame the snidey foreign lad.