Consumer Startups without Revenue are Products, not Businesses

I found this article incredibly insightful, and was surprised to find no discussion (disagreement?) from the community here.

It's based on a potentially (?) flawed analysis of the impact of advertising early (or later) in a product's life, but it reminds me of a very real debate as to whether a product requires a business model to be worthwhile (in the long term) or if an acquisition exit is sufficient.