Phil said lets players who generate revenue through ads on youtube are doing something akin to streaming a movie on youtube and making ad money on it. One is allowed, one isnt. He thinks when people stream a game in it's entirety and get money for it, developers are entitled to some of that money. Honestly, I kind of agree with him. When I see people like pewdiepie make 4 million a year by acting like an ass while broadcasting/consuming content made by someone else... I don't know, seems wrong.

i could see if i wrote some grand story in my game that acted like a movie being upset for people “showing my movie” via youtube. i guess i dont care as much because i never write my games like movies, i dont think watching someone play my games does anything more than make people want to PLAY my games.. because my games were designed to be enjoyed through gameplay… but whatever. 

i can understand both sides, i personally see it as advertising especially when lets players have a lot of fun with the game. 

games arent at all the same as movies or music.. so its a bit fuzzy.

i think a good middle ground would be simply getting permission.. if people dont want you showin off your game i think you should have the ability to say dont post video of my work… 

but it doesnt bother me personaly