I agree with everything you said. This isn’t what I would want to plan a route or get my bearings. However, it may be a reasonable logical representation which

I agree with everything you said. This isn’t what I would want to plan a route or get my bearings. However, it may be a reasonable logical representation which could have benefits for determine relationships. Logical maps have their place. We don’t complain that a device tree doesn’t show me _where_ in the computer storage is relative to say USB ports, just how things are connected. I can monitor my solar panels using a physical representation or logical representation. If there was a problem I’d start with the logical to identify the device that failed and what is affected and then switch to the physical to know where to fix.