The way I'm reading it, the point is to concentrate on your product and making it, in reality, better than the product(s) of your competitor(s) rather than... pivoting? Building a different product? Making your product into something else? Changing your target audience? I guess the only real lesson I'm taking away here is that "if you have product, sell it; if it sucks, make it better." Not exactly groundbreaking, though certainly true.
If the desire was to communicate something more general, taking it out of the context of existing product-based businesses with market share and competitors would probably be necessary (but would have probably killed the anecdotes... which is why I'm guessing the article didn't really get off the ground in this regard).
So yeah, it's mostly true... but where it is, it's sort of trivially so.