The video is mostly to show what the type cover looks like.
During my time using the touch cover, it took some time to get use to it.
The touch cover is much lighter and thinner than the type cover, but I sometimes find myself typing a bit harder (you don’t have to, to have it to register) to make sure the keys are getting pressed. This just might be me. Also when typing searches and passwords quickly, I tend to mess up often and hit backspace a lot. With the type cover, since it is an actual keyboard, I can be much more efficient and comfortable typing up documents and performing searches. In the end, it is comes down to the user’s preference.