You are right about the fact that most of the social media content is in videos (larger data size). I am hearing about this for the first time and it excites me to no end. If this is real and if it works then this is better then steemit for video content creators.
From your description I understand that tipping would be a personal choice like a upvote(steemit) and unlike pay for number of views (like you tube) but with an essential difference that even 5 seconds of watch is payable.
This is all good but what hold my interest is that you mentioned content advertising income goes 100% to the user. This could be epic. Although I am little uncertain as to what mechanism is there to stop creation of bots. Bots are here on Steemit and they they will be there as well.