Is this why he Lost?

This video wont allow me to embed, but is this the reason that Al Franken lost by 570 votes? One of his main campaign ideas was Obama + Franken= Change. In other-words, he was trying to get people to vote a straight ticket, however was unsuccessful in convincing people that he was associated enough with Obama. While Franken is an intelligent character and has more to him that Stuart Smalley and other Saturday Night Live characters, but Sen. Coleman, who appears to be the victor here used ads like this to convince just enough people that Franken was too much of a comedian to be a U.S. Senator: