> make it very clear that video out is only happening with their dock

What about it is "very clear"? It worked on the Switch 1, it's expected to work as it's USB, there is no error message, it just will appear that maybe the USB dongle or HDMI cable or whatever is defective.

The switch 1 situation also wasn't great with reports of switches being bricked or picky about 3rd party docks. I guess that's why they stopped trying to be compatible at all.