Fast Forward / skip buttons & set seconds in video settings
I take that this may have been considered but perhaps left out for the sake of maintaining a simpler interface (playback + timeline & optional rewind).
While scrubbing the timeline is easy enough, I could see how fast forward buttons would be handy to have a glance through what the video covers, instead of changing playback speed back and forth,
as well as skip buttons (besides already the rewind option) to jump quickly over sections without the need to use bookmarks :)