Are you talking about the thing where sending 9 volts on a data pin fries the switch? I don't blame the spec or Nintendo for that one.
That cable is more of a complexity problem, but it wasn't because it misrepresented capabilities or anything. They put in a chip which didn't reset the connection when you unplugged one end. I don't know if that's really a spec problem, though.
I mentioned volts for frying, and I mentioned amps for fire.
And I don't think either failure can be caused by a cable failing to properly list what it can handle. Do you?