Why is it hard to embed youtube vids?

Since WP went to the copy and paste method, I always have problems. Before the easier method, I never had problems with the code.

I’ve read the newest tutorial, and it doesn’t work. Could it be my host, 1and1.com?

Here is where I tried to add the vid.
http://baldpunk.com/2010/03/08/white-fire/

Thanks,
Joe