I suspect eurogamer tried with a straight usb c-hdmi adapter, which will not work, if you dock the switch without the AC adapter connected to the dock, it does nothing, I believe it needs to be an adapter that supports both USB and USB-C power input, so I decided to be the guinea pig and I ordered a USB-C to HDMI adapter that also has USB-C power input and USB accessory input (just like the dock) from Amazon, which will be here in the morning (about 9 hours from now).
I'm fairly confident it will work and basically do the exact same thing as the dock, which would mean that there is a much, much cheaper option to buying a second Nintendo dock (the adapter runs about $25), and is also much more friendly for PC capture of gameplay.
Will post and let you know how it goes regardless.