Lockheed will probably lap ITER within the next few years: https://en.wikipedia.org/wiki/High_beta_fusion_reactor

Let's not forget that the end-game for fusion is "virtually limitless, safe, clean, carbon-neutral, very high-density power"--a set of characteristics literally none of our other sources of electricity have.

The author also neglects all of the scientific advancements that we've made but haven't yet transmuted into engineering advancements. Graphene, nanotubes, metamaterials, etc.