[kuschku]

That's correct, but looking at how much money Amazon has spent trying to replicate Google's closed APIs on their Android version, I don't think it's unreasonable for them to expect an open protocol at least this time.

Amazon spent billions trying to work around Google's anticompetitive bullshit (something the open source community had to do as well with microG), and I think at least at some point Google should be held responsible for their proprietary bullshit.

Had Google actually open sourced Chromecast, on all sides, you'd have seen much higher adoption.