I've complained about this page several years ago in the discussion page but there was no reply, so I'll try the repair shop.
This trope is misguided to the core. First, in both the description and the examples, Techno is used as a catch-all term for electronic music (especially the "dark" kind) when it's only the name of a certain kind of it. Trance, Breakbeat, Synth-pop and Ambient are entirely different genres.
Even if we change the name to "Cyberpunk is Electronic Music", the trope still wouldn't make sense. Metal and orchestral music are present in cyberpunk films just as often as electronic music, if not more. Also, electronic soundtracks (whether ambient or upbeat) aren't limited to Cyberpunk, or even to Sci-Fi in general. You can hear electronic beats and soundscapes in many action movies and TV series made in or after the 80's, especially in productions not fancy enough to incorporate an orchestra. And I'm not even starting on video games. Ironically, this page has quite a few examples of non-cyberpunk works with electronic soundtracks.