100% agree with this - it's one of the main reasons (other than ad payouts) why they're not massively competing with YouTube just yet. News Feed is their core,

100% agree with this - it's one of the main reasons (other than ad payouts) why they're not massively competing with YouTube just yet. News Feed is their core, but it's also what's been holding them back from really destroying other markets - the discoverability mechanics (you never know what's coming up, so keep scrolling...) of the News Feed are a blessing and a curse. When they break themselves away from this (which they arguably have with their attempts to embed more in Messenger - I can foresee a future test being you subscribing to video channels/news brands in Messenger and having bots push the latest vids out, history repeats itself), and open up a few more interaction mechanics, things could change.