Those aren’t different standards, they’re just different USB-C cables. It’s like saying light bulb sockets aren’t a unifying standard because there’s different bulbs with different wattages. The fact that all those cables work over the same standard is an example of how ubiquitous the standard is. That said they should be labeled better, like how USB3 was color coded blue; each cable could have a color strip to distinguish it.
Those aren’t different standards, they’re just different USB-C cables. It’s like saying light bulb sockets aren’t a unifying standard because there’s different bulbs with different wattages. The fact that all those cables work over the same standard is an example of how ubiquitous the standard is. That said they should be labeled better, like how USB3 was color coded blue; each cable could have a color strip to distinguish it.