Students should by default be able to pause videos and navigate videos as they normally do on other video watching platforms.
Preventing students from pausing videos can cause of a lot of waiting and impatience for students, who then have to try to remember their response.
I think time to review should be done in a similar way to how we manage audio files. If there is a four minute video, encourage teachers to have five minutes of preparation time, that way students can watch the video in full, skip / replay any parts they want, and then still have a minute left to re-watch anything else.
nice