It's just because vibe coding is still "new" and various people have mixed results with it. This means that anecdotes today of either success or failure still carry some "signal".

It will take some time (maybe more than a decade) for vibe coding to be "old" and consistently correct enough where it's no longer mentioned.

Same thing happened 30 years ago with "The Information Superhighway" or "the internet". Back then, people really did say things like, "I got tomorrow's weather forecast of rain from the internet."

Why would they even need to mention the "internet" at all?!? Because it was the new thing back then and the speaker was making a point that they didn't get the weather info from the newspaper or tv news. It took some time for everybody to just say, "it's going to rain tomorrow" with no mentions of internet or smartphones.