I do think it’s pretty easy for people in the video-enthusiast camp (i.e. you care a lot about compression artifacts) to overestimate how much bigger the average consumer market (people who care a lot more about ease of access) is. Why would Disney continue to release physical media?
Perhaps they’ll care when people start hitting their friendly local neighborhood data caps. Not everybody in the country has fiber optic lines. A Frontier technician once told me it would take an act of congress to get the copper lines replaced in my old neighborhood. Internet speeds were abysmal for streaming there.