The issue with this stance is that it's one of those all-or-nothing points of view. Sure it's better to have good public transportation, but in a lot of places there won't be for the foreseeable future. Sure it's better to use bicycles, but sometimes it's just not an option.
Electric cars won't fix traffic, but for the planet they're still a vast improvement. It's like a viable 95% solution that is dismissed because there might a 100% one somewhere in the next 200 years.
Have you ever actually read it? The prophecies were deliberately spread over the universe by the Bene Gesserit. The department that does that is called the Missionaria Protectiva, they do that all over the universe so their members can manipulate the locals to be safe wherever they end up. This isn't supposed to glorify those prophecies, it's demystifying them to the point where religion as a whole is showcased as a mere tool to control the masses in later books. It's supposed to criticise the thing you're criticising.