(why are there no “real” USB-C hubs? some say that it is due to the lack of the existence of a chip that Intel is going to release "any time now" for like a year now… others say that the power delivery requirements of USB-C make this really tricky)
That's a USB3.1 hub that has USB-C connectors. While one can get away with that in the whole USB-C mess/confusion, it is usually not what people expect. You can't connect a monitor or power your device with this hub, for example.
There is not a single USB-C hub on this site. A USB-C hub would take one USB-C port and turn it into several USB-C ports.
These are what are called port replicators. There are no USB-C hubs in existence, which is a huge reason why the standard is still struggling.
Thank you for putting a selector for "how many USB-C ports" front and center, that at least illustrates the problem…