Storyline Accessible Video Controls seem to make accessibility worse?

I always have video controls.

Having any content that auto plays, there must be a pause button if it is longer than 5 seconds.

Having something auto play without context could be very jarring for a screen reader user as well.

I will look through some of my projects but if you have any slides as examples that you want to send my way I can do a screen reader demo of how the screen reader interacts with the content and how it reads the video player.

I'm not sure I understood the possible issue with the timeline going while someone is on the video element. Are you referring to a slide with a lot of animation? Or is there other slide audio that isn’t the video? In that case I would not have that all on one slide as that could be overwhelming for a lot of learners. (But I may be totally misunderstanding the issue so please feel free to clarify!) 

I would love to hear from any native screen reader users if we have any in the group!