Because the player is only the first step. Then you need all the other stuff like a CDN distribution to get it close enough to all your subscribers/able to hand

Because the player is only the first step. Then you need all the other stuff like a CDN distribution to get it close enough to all your subscribers/able to handle all the subscribers pulling down video. I'd be shocked if the core player that just shows pixels on the screen is anyones' problem at this point.