Seriously? You think that adding some extra meta data packets to the HDMI transport is going to take up extra die space? I would bet my dog it could be implemented in firmware on a majority of modern cards (by a 2-5 person team in a couple months).
They know that a feature like this would improve the experience on media piracy on PC.
The obvious reason is there is an under the table industry agreement to keep this standard from working on PC for regular consumers. Or NVIDIA has specifically avoided doing it to dodge the ire of the media conglomerates.
There is no reasonable argument from the perspective of the consumer not to have HDMI-CEC on consumer GPUs. It’s purely corporate back-scratching.
Don’t be such a damn shill generix.