As with most horse sports that do not count points, the non BL takes a bit of study to understand and pick the winner. The average joe (obviously, this excludes present company), loses interest and goes to get beer. I was bored by it, but I can watch dressage all day, because I have studied it. Bores others to tears.
BL does fill the stands, and spectators have a much better chance of successfully picking the winner. They leave the show feeling good. Sad it at the expense of the animals.