That's what buggs me about the situation. Physical media doesn't matter one bit.
There's nothing about physical media that conferrs any kind of ownership over the copy. Already way back in 2012 I bought an used copy of Skyrim only to find out when trying to install it that it used Steam and the CD key was already tied to the previous owner's Steam account. I had the physical media, but it was worthless to me.
What we should be fighting (or put our money towards) is DRM-free copies, like what GOG sells. If you really fetishize plastic disks nobody's stopping you from burning a copy of the DRM-free installer onto one, or you can put it on your NAS, the cloud or where the sun don't shine.