I started out not liking this team because I felt that they were arrogant. But then I realized that feeling came entirely from what they had to say during the interviews, not from anything they did while racing. (Not the talks with Phil on the mat, but the interviews one can find on the website)
Here's the thing - during the interviews, we only hear a team's responses. We never hear what question came before the response. And a clever interviewer can elicit just about any answer the interviewer wants, based on how a question is phrased and other techniques. So I'm thinking "a little bit cocksure of themselves" is part of the persona the producers want this team to portray.
I think with this team we have a sterling example of "actions speak louder than words", and I have revised my opinion and now appreciate them.