The problem with USB-C is that you can't just pick up a device cable and power brick and expect them to work together. As an example, my Apple 96W USB-C charger doesn't charge my nintendo switch. The cable that came with my phone doesn't charge said fully Mac when used with the 96w charger. There is no indication of incompatibility between these devices until you realise they don't work. This is going back to the dc…
The regulation (I hope) is about actually adhering to USB-C, not merely shipping with USB-C connectors. And the bar to pass should be to be able to use a large stack of USB-C chargers and work.