very good idea, I play like 20 minnutes and I really enjoyed. but there is still need to add something to the game for improving the ejoyment, the competition is good for the start but the fun is less then competition. Maybe streamer can sabotate our play even more that or the troll guys can came to the chat and trol the stream. thoose feedback are just for the begining the game like 20 minute play time.
Or maybe you should add a pilot twist like we can sabotate the stream (chat, donates, camera e.g) with our mouse or idk bounce the ball to the edges and shake the game screen .