This is reductive. It is a physical connector and a bevy of specifications. Take the Apple power bricks for MBPs for example. The move to usb-c saw a bunch of specification inclusions that they could have left out. That brick will basically charge any usb device. Now that's one part of the spec, this article covers more and it is entirely valid.
Straight from the wiki, am I not comprehending this correctly?
“The designation "C" refers only to the connector's physical configuration, or form factor, not to be confused with the connector's specific capabilities, such as Thunderbolt 3, DisplayPort 2.0, or USB 3.2 Gen 2x2. Based on the protocols supported by both host and peripheral devices, a USB-C connection normally provides much higher signalling and data rates than the superseded connectors.
A device with a Type-C connector does not necessarily implement any USB transfer protocol, USB Power Delivery, or any of the Alternate Modes: the Type-C connector is common to several technologies while mandating only a few of them.”