You're misinterpreting it, I think. Bill Murray has always struck me as slightly damaged – in a good way, more authentic seeming. This sense of frayed vulnerability has grown more beautiful and poignant as he has aged, especially evident in films like "Lost in Translation".

I think that is what the title refers to. There are different ways to be graceful. Bill Murray doesn't have the affable, everyman grace of Tom Hanks or the smooth, charismatic grace of George Clooney. Murray's grace feels a bit worn out by life, a bit rough around the edges.

You're obviously entitled to your opinion, but I'm okay with the title, under this interpretation.