1) The help videos are a nice idea but need some reworking. I believe that the person who wrote the script for the help videos has played the game too many times and uses terms that aren't familiar to a new player. For example, the video on how to move the camera around doesn't tell you which buttons to push to move. You instead say something like "push the direction keys." I assume you say direction keys instead of WASD because people can possibly remap the keys. This video is for new people. They aren't going to have remapped the keys. Just say push A to go left, W for forward, D for left and so on.
The worst case of this was in the dragon transformation video. At the end it tells you to exit dragon form by pushing the transform button. What is the transform button? I had a long unpleasant time trying to figure that out. I kept trying to find a button on the screen to push, but you can't click screen buttons in that form. Very frustrating.
I must agree with this. Also, the Dragon Morphing video just said, 'For example, I've just issued order to these units in Dragon Form. There are many hotkeys in D:DC.' - but the method on how to issue that order was not described in any form.
Considering it is a tutorial, it is always nice including how you did what you did in the video.
Also, thanks for writing down that the transform button is R, you have saved me from a lot of pain figuring it out

(The tutorial videos should mention the default settings.)