It's not really appropriated, as it's still the same thing, just being used for a purpose other than the one it was originally invented for. Plenty of things end up useful for things other than why they were invented but retain a name based on the original very specific use case that doesn't make sense for their common use case. USB's name isn't appropriated when a device charges over USB-PD and uses resistors on the channel configuration pins to set the current limits without a serial connection, despite serial bus being part of the name.