show business
Because of the severe time limitations. Mr Galante is not a professional speaker, which in some ways makes his story all that much more touching and credible. However, if Sean doesn't cut him off and lead to the exact point, he would not be concise enough to get the points across that he wants to, and won't be knowledgeable in how to punctuate them. It's got to be short sound bites, brief quotes, and I think Sean was trying to lead him to get that. I actually thought Sean did a pretty good job.