USB-C is an old technology and the EU is demanding it.
As others have pointed out all that is mandated is the physical interface. Normally a good thing to standardize and generally will help new applications and markets grow. Innovation can then be done based on this interface and in areas where companies can differentiate their products and add value.
As I mentioned above (but totally ignored by you). Apple (and others) are indeed innovating around this physical interface with its laptops / personal computer using Thunderbolt to bring more functions (multiple displays, high speed communications, power etc) all through a USB Type C connector. The only connector you need on an Apple personal computer.
Other high power devices (up to 240W) are also moving to USB Type C for power.
Having a physical interface defined (here USB Type C) is actually enabling a lot of innovation across many different applications.