... and interact with current media is not all that easyobvious for them. Again I don't have specifics...
For example the use of the 'image' button for different purposes.
Look at this screen:
In this screen, the 'image button' is used as an indicator for images. It doesn't do anything if you click on it (which in itself is a bit confusing, since it is styled as a button).
And then look at this screen:
In this screen, the exact same icon is used, but for a totally different function: when clicking it, it opens your image in a lightbox.
2 totally different functions using exactly the same icon. This is no good for obvious UI/UX reasons.