No, think she'd fail at dancing too. But to make eye-contact and congratulate your opponent for a hard-fought match, which btw she also contributed to, is in the spirit of the game. And yes, these things matter, because its the human element, and character that binds the viewer to the sporting spectacle, and makes him tune in.
As for her presser, it smacked of arrogance, underestimating Bartoli, as if it was a given she'd win if she met her, and that it 'd be more insulting losing to her in the finals.
Now spare us your un-biased justification.