... which I've ordered from. If I want a disc, I buy it from Amazon. Otherwise I stream. I get that it might have made sense once upon a time, but thankfully those days are long gone.

They're spinning down the side of their business that requires using the postal service because it's less popular, and less efficient than the side that doesn't.

...because they were shipping a digital product via the mail, and a new delivery format arrived. they went from shipping their digital goods physically to shipping their digital goods digitally.

It is a good prediction that we will someday be receiving our newly ordered toothbrush digitally, and have it physically printed in your home, but for now we still need physical goods to move from factory-warehouse-home