Why the interpretation of “Measuring propagation speed of Coulomb fields” stands R. de Sangro, G. Finocchiaro, P. Patteri, M. Piccolo and G. Pizzella Eur. Phys. J. C, 77 2 (2017) 75 Published online: 06 February 2017 DOI: 10.1140/epjc/s10052-017-4650-y