Nothing in the article states what the chemicals are made of, so we have no idea of their cost, rarity, toxicity, ease of fabrication, or whether or not they have unique handling requirements.
It's a neat concept, and the fact they've gotten it to work in a lab is a fundamental baby step, but they're a long way away from building a gigafactory capable of making this stuff (and the attendant whole-home systems that could use it) at anything like industrial scale.

