If true, like everything there is no free lunch. Using “electrostatics” to drive off ice particle will require not just and electrostatic voltage, but also a current induced by the particles moving which means you have to supply electric power. The question will be, if it works at all, then how much power and is that practical.
so instead of a $0.50 ice scraper that take that take less than 5 minutes to scrape the entire glass of a car, you can now do it in less than two hours and $50,000.00 de-icer and a very long extension cord.
Computers were much the same way when they were first introduces. You could replace 10 clerical workers with a very large and expensive computer system that took 10 computer scientists and engineers to operate. and it was less effective, in the short run anyway