Oh no, I'm not taking anything personally :) Everyone is entitled to their own opinions of course. I can't look at the videos now because of the school server I am on, but I'll look at them when I get home.
I do politely disagree with you though, as I believe that WD in the least provides an opportunity for people to do something they normally couldn't, like the person who posted just a few posts back that has a bad back and can't ride english.
Some people also say that WD is just the same thing as reining, and it's definitely not. XD Just my opinion. You do not do upper level dressage manuvers in reining. Reining is it's own, unique thing and is quite different from dressage in my opinion even if they do share some similarities. My horse can do WD, obviously, but he could never be a reining horse xD