A missed opportunity though. If it’s USB-C powered, it could be even smaller and Apple could simplify its BOM by including a MacBook Pro charger with it.
If it was USB-C powered people would be complaining about the size of the external power supply.
If it only had one USBc input, how could it supply enough power for 5 USBc outputs ? Well ok, 3xTB5 + 2xUSBc, but still ?