Last time I was in Jordan told me he is writing a book on FFP and that his view has "evolved" over time. I don't think it is anything to do with letters. And to be honest had they had a letter, I suspect they would have told me because it would have been relevant to know ("if we get on to City please be careful" or whatever). Either way, Jordan's change of position is not brand new.
Is this one of those, what a difference a comma can make, jokes?