I won't be going but I think the point is that Kirstie is a well known personality that people have seen, she also has lots of bubbly enthusiasm which encourages people to have a go and try. We all have to start somewhere in order to get more proficient later. It's the same with Tilly, some on this forum are really against her but she has encouraged lots of people to take up sewing and she is a very successful business woman. She also has an infectious and enthusiastic approach which is probably more important than her skill level.