I think the Wayne Hennessey case makes for a more compelling argument than the size of any fine. The FA accepted in that case that Hennessey didn't know what a Nazi salute was, which is quite obviously untrue, and dropped the charges. In Bernardo's case they accepted that "the player did not have any knowledge of the historical connotations of the Conguitos character", but banned him regardless. It smacks of double standards to me.
Anyway, the club and Silva have accepted the punishment, albeit reluctantly, so I think there's little point in dwelling on it. Time to draw a line under it and move on. Hopefully Bernardo can recapture the form he showed last season.