> Usually the best place to fix it is by getting rid of the bad cables. Usually.

No. There is no USB-C to C cable that will charge a badly implemented device with a standards compliant charger. That is the entire point.

An USB A to C cable is completely standards-compliant and safe, even if it always supplies 5V on the C end - any standards compliant USB-C device should not activate the MOSFET on its Vbus line unless it successfully negotiates via CC.

They mean bad USB-A to C cables with no resistor on CC line. Of course this is broken junk, but it will (only) work with noncompliant devices. I've also seen cables with resistors on both CC lines, which is also broken but in a slightly subtler way.