If you have 150k in the bank it's because you have some seed money, or have bootstrapped your way to that position. If you've bootstrapped then you've achieved pretty good product/market fit and have good revenues. Conversely if you've raised 150k and haven't achieved product/market fit, then you probably shouldn't be hiring.
Now, if you look at companies that have raised 150-300K I don't think you'll find many of them hiring, at least not very aggressively. I feel that level of money is used to give the founders time to iterate until product/market fit and not be cash constrained when it comes to things like contracting a good designer or buying a domain. And once a seed funded company achieves some semblance of product/market fit they go and raise 1-2 million.
So is this article intended for the few companies that have raised in the 100-300K range that are starting to hire? If that's the case then ya, I agree such a company is going to have difficulty hiring. They have significant risk of not achieving product/market risk, and they don't have sufficient capital to give a fair market wage. So a potential employee is taking a huge chance on such a company, and should obviously be compensated for that (relative to the very attractive compensation packages are companies like Yammer, Square, etc). But I don't really think there are very many companies like that, but maybe I'm out of the loop.