I'd rather kick Fog out of court than to fire a linesperson. They do a tough job and they can be wrong at times since they have to rely on their human eyes and it's perfectly normal to make a mistake. To call the supervisor over a call is going over the borderline. He's such a diva, your la drama queen.
In any case, no matter how you slice it or dice it, Tsonga still held the H2H going into this match and one on clay at RG. Fog just folded once Tsonga upped his game in the 2nd set. The fuss over the line call was just a convenient excuse for him.