Soldering skillz are always nice to have but the amount of Chinese 'USB C' gear that skimp on the 5.1K resistors is truly enormous, and adding them gets old really fast. Some designers even combine cc1 and cc2 to save 0.01¢ on the second resistor, with predictable results..
They probably don't know they need them. A lot of stuff is just copy-pasted from old reference designs that used micro usb and then they slapped a USB-C connector on for marketing purposes.
If you've been an electronics engineer long enough to be able to design this radio, you almost certainly know the resistors are needed, or can discover it with a single Google search ("PCB design micro USB to C upgrade").
A more likely story is cost savings. It's cheaper not to support it, from an assembly and testing point of view.
