Hes been at the club from his teens through to close to retirement, nowt wrong with showing some emotion. The idea that he's not allowed to be emotional because he's moving to Paris is pretty silly. You can be rich and still be sad leaving somewhere you've lived and played for 15 odd years.
Do you think its his responsibility to check whether a deal is financially responsible for the club or not ? He's a footballer, probably a bit thick.... if your club offers you obscene money you presume its because they can afford to do so. The club are to blame, don't offer contracts you cant afford to pay.