Based on all the evidence I've read in this thread, I'm putting my neck on the line and saying that 'non football reasons' is just another way of saying that he took one look* at Sixfields and decided he wasn't playing there, and with good reason!!! Nice one, Sisu**!
(*I'm assuming he will have looked in a brochure or something that Pressley will have shown him as he won't have actually gone to the ground.)
I actually heard he left because he WANTED to play at Sixfields and heard we may be moving back to the Ricoh soon and has a fear of anything associated with Japanese printers.