

That’s the point, planned obsolescence.
Shut down the Wii U online services to force people to buy newer hardware. If people create their own “unauthorized” services then, in their eyes, they’re losing sales.
I imagine it’s not too long before the software starts including an end of life date that bricks devices after a certain date.
If you’re fine with using the previous generation, there will be plenty of available for cheaper soon.
And although the switch 2 is backward compatible, the current generation already has a full library of games.