I feel like it's a cultural thing with the designers. Ceragon were the exact same when I used to do microwave links. Happy to provide demo kit, happy to provide sales support, happy to actually come up and go through their product range.

But if you want any deep and complex technical info out of them, like oh maybe how to configure it to fit UK/EU regulatory domain RF rules? Haha no chance.

We ended up hiring a guy fluent in Hebrew just to talk to their support guys.

Super nice kit, but I guess no-one was prepared to pay for an interface layer between the developers and the outside world.