Also, not so dramatic when the show is over to walk out, that is expected anyway..
Not so sure that was the last one of the day when it was filmed, they arent necessarily filmed in the order that they are shown. Which brings me to another point, there had to be more to the story that was edited out. I think Robert, Mark, and Mr. W felt that Lori was getting involved in something she has no knowledge of primarily because she felt bad for the guy. There probably were other things said that were not shown that made them think that. They also felt that she didnt follow the protocol of asking questions and understanding the business before making an offer. Robert may have been interested in the business but he wanted some questions answered before he made an offer and he never got a chance. Personally, I think all is fair in the Shark Tank. No issues with Lori making that offer for whatever reason she had in mind. She gave the guy 20k (Daymond gave another 20k). Its a low risk play for her, even if it comes from a place of sympathy.
The editors probably did a good job of making it look worse than it was. They probably get up and take a break after many of the deals.