So there's a lot of text under the criticism section, And I'm sure my argument against it is nothing new, but wouldn't the operation and monitoring of the door take some energy? Even in a "friction less spherical cow" perfect world, removing the cost of operating the door seems to be a bit of a stretch.
What are the arguments for it really?
I'm not sure I understand what you are saying. What part of the OS should managed the packages? The creators aka. Microsoft/Linux foundation/Apple/Google, the distributor, or a kernel module? What about cross platform package managers like Nuget, gradle, npm?