What utter s***e !
Like many before him, the guy is in the death throes of his current contract and has chosen to look further afield as he can make more money doing the same job elsewhere. The 'guardians' of the club as you so derisively call them can no more make him sign a new contract than you could. It is the player's choice, or in some cases, the choice or advice of the player's agent. We have been down this road in every division we have been in, including the premiership and with every board and chairman who has ever been at the helm for more than 5 minutes.
As for the player, I cant say I blame him ..... The gulf in income between premiership and championship is massive - even before you consider Uncle Roy's deep pockets - so its no surprise that a player would look to go there for a bigger payday in what is a short career compared to other occupations so whilst we may not like it, any sane and intelligent human should be able to understand it.