The article makes no mention to the molecules only working on cancer cells. The molecules, according to the article, attach to cell membranes, and then the molecules are jiggled to blow up the cells. That process doesn't mention an ability to differentiate between cancer and non-cancer cells. The technique was tried on a culture growth, where a hammer would have the same results. It was also tried on mice, where half were left cancer-free, but little is said about the process, the specifics of the results, or what happened to the other half of mice.

We all get the goal of cancer research, OP is just doubtful that this achieves it, as am I, as well as anyone who's read good news about eradicating cancer in the past few decades. Most are duds or go nowhere even if initially promising, so...