Ok, just for fun I tried Mint 19.2 in a VM and the problem is solved by using the development version of Wine. Note that the one in the mint repos is very old, but the instructions found in the last post
here installs it from wineHQ. I also used the latest version of winetricks,
see here for instructions. After that the commands above worked with the latest version of ADE. Authorization and downloading DRM-encumbered epubs work.
As I was saying, very easy to install.