I think there's a fairly important consideration that he misses, especially if you lack experience. Right after the Series A is when you're most likely to gain

I think there's a fairly important consideration that he misses, especially if you lack experience. Right after the Series A is when you're most likely to gain useful experience and work on interesting stuff. Before the funding, you're often just in survival mode, and just building the simplest things possible. Later on, job roles become more rigid, and most of the design/architecture has solidified. Correspondingly, this might be the most fun/interesting time to be at a startup.