Yes, which the article does not say they’ve failed to do. In fact, the article says that the videos submitted as evidence seem to support its legal use not in Gaza, but near Lebanon, and that Human Rights Watch submitted no videos at all showing white phosphorus in Gaza.
At the scale of war, something purpose-built like this is helpful because it’s customized and standardized for exactly what they want it to do. But if it would really be that helpful for individual acts of terror, I think we’d have seen rudimentary versions by now. If terrorists haven’t been using RC cars or rovers already, I don’t think this is enough of a jump in tech to make them start.