You really are more cantankerous than a 70 year old.
I think your problem can be traced back to the word "measure." And that not only tells us that which you value but why you can't get past certain things like "passion." And moreover, its why you're ramming it down everyones throat that they need to adhere to your standarRAB of excellence.
And whose to determine what is horrible reasoning when we're going to talk about criteria for good songwriting. If I went up to the microphone and delivered a monotone, or druken version of anything, all the melody, harmony, craftsmanship...its all for not. Those are black and white notes on a page but they don't come with any emotions behind them. You need to have an emotional investment if you want to drag a song out to the point in which its as good as it could possibly be. Passion through delivery even seeps into the way the music is played. You can't write something and go through the motions, its simply bad business.
I'd like to ask how one claims to be a music fan by simply plugging in songs to mathmatical formulas all day long. And what do you know about Marketing?