If you continue to use space-bar to pause and play the video, you are Ok. The control bar will disappear because no control panel buttons have been focused on.
If you tab into the control panel and click enter on the play/pause button in the control bar, you are stuck with no way take focus off the controls using the "ESC" key. There is no way to get the control panel to disappear when the video is playing, unless the user has access to a mouse.
EXPECTED: the "ESC" key can also be used to remove focus from the control button.
If the "ESC" key is allowed to remove focus from the control buttons, then the keyboard and play/pause button can be used to start and stop the video for users that only use a keyboard, and allow the control panel to disappear, so that users could see the video hidden by the control panel
Related to #321, Users who only use the keyboard, but not mouse, are unable to remove focus from the video using ESC key.
To duplicate:
If the "ESC" key is allowed to remove focus from the control buttons, then the keyboard and play/pause button can be used to start and stop the video for users that only use a keyboard, and allow the control panel to disappear, so that users could see the video hidden by the control panel