Good points. I know for one, I was given the name of my seminar and had to figure out for myself what I was to talk about. Another thing that you might not be aware of is that this is the first year (so I was told) that the presenters were not paid by TW to give the seminars. We donated our time - which is probably why the presenters were heavily mentioning their products.
I had a really fun time doing mine and look forward to doing it again next year (even though my day was changed (or I had a lapse in memory) and had to run over and give my seminar without any preparation.. doh!). If you sat through mine I hope you walked away with more knowledge than you arrived with!