"Tarnishing the image ... of Mercedes' eighth constructors' championship"? Er, no. Masi's actions did not influence that. The drivers' championship, however, was effectively decided by him.
The FIA is looking to get away with a fudge, and since it is judge, jury and executioner in the appeal process, it will really depend on how much embarrassment it is prepared to endure if Mercedes really push it. It's all about protecting itself. Justice? Impartial? Transparent? Don't be silly...
Anybody know how the Dutch sporting media are reporting it, if at all, or are they all still too busy celebrating?