I was more thinking along the lines of "We're going to build project X that will do Y!" where X doesn't exist in reality yet and Y is just a set of features (not a promise of future economic returns). If X does get built and it does functionally accomplish Y, then it's no longer speculation. Then it's more along the lines of what you describe in terms of evaluating it as a real project with expectations of profitability and utility value.
I'd say Steem is built, and it does functionally exist as a social media application on the blockchain which rewards people with tokens of value. Many other blockchain projects still haven't been built out to do the thing they claim they are going to do. Many more are today than in 2017, but I still think there's a disconnect between pure speculation in the space and evaluating a cryptocurrency project against other competitors in that market vertical.
Ultimately, I agree, the value hasn't yet been demonstrated, or we'd see more people buying Steem and powering up.
RE: HF21: What Makes Steem Valuable?