> It's painfully obvious this article was written by an investor for several reasons

This seems a bit churlish as an observation. The first paragraph makes it clear the piece was written by an investor, or at least with an investor mindset: "When you meet startups and VCs these days, there’s usually a lot of verbiage spent on defining stage (pre-seed, seed, post-seed, pre-A, Early A, A, Late A, B, C…). As a venture eco-system, we continue to struggle with this."

I don't see why this is painful or worthy of criticism, at least not on this point.