That's how I see it too. Looking at things in isolation hardly works if sound quality is your goal. We truly don't understand fully what crap cables collect and how it impacts our hifi.
I live in a detached property but could get WiFi from quite a few neighbours, however weak. Not to mention mobile phone reception, DAB and analogue radio, TV, NFC, Bluetooth. Can't see attaching any extra cables working as antennas as beneficial. But the existing ones already are. Neither can I see a benefit treating all cables as adequate and undamaged. No one ever improved anything with such attitude.
Can there be an improvement? I don't know. I'm using standard cables. Nothing fancy. All I'm saying is we need people questioning things to get an improvement. Hardly ever a point saying "there can't be a difference." It's people who are curious and not afraid to ask often stupid questions that are rewarded.
As a side note, I feel like people would be far mode sympathetic if you said the same about a vinyl based system.
I'll be following this thread with a lot of interest. I'd be checking LAN cables myself if I didn't have any other audio commitments.