Not really.
You can still play games purchased at the Wii Shop, you just can't re-download them.
[Edited to note: Apparently you can re-download or transfer to a Wii U]
That's not meaningfully different from having one physical copy: you can use the physical copy until the point that it's worn out.
https://en-americas-support.nintendo.com/app/answers/detail/...
It happened recently so there is a grace period to download final copies of a game, but if your console dies and you want to transfer games to another unit you get off eBay in a few years, you are SOL.
Again, this is not functionally different than your cartridge dying. If your NES cartridge dies, you can replace it with a second-hand copy, or you're SOL. The same.
You're saying that there's a consumer benefit to a console-cartridge system being modular (such that either module can be replaced when desired, rather than needing to replace them as a package), but I don't think this has any bearing on ownership rights, nor any of the other points that you claimed. At least, not in the case of the Wii Shop.
Maybe I had 100 $40 games on my $100 console. Console breaks, I lose all games.
With physical media: One game breaks, I lose one game. One console breaks, I lose one console. Way less risk.
Also I can't sell or transfer the digital copies to friends or family.
Lock-in digitals are not at all equivalent rights of physical copies.
A lot of video game CDs barely lasted the life of their console without becoming basically useless.
[1] There are mask roms that are prone to failure, and some NES for eg. games are vulnerable to progressive failure of their battery backed RAM chips, which were not just for save backup but were also often used as extra RAM with a lot of write cycles (and to be clear, I don't mean the battery dying - I mean stuck or flipped bits on the ram itself).
I've got NES cartridges from the 80s or 90s still working.
And I've got Switch cartridges that are dependent on Nintendo's continued online support.
My point was that a physical Wii still works and is still a physical object, so it serves the same functional purpose here as individual NES cartridges.