In the Letter by Ozawa [M. Ozawa, Phys. Lett. A 356 (2006) 411–413] potentially lacking mathematical rigour in our previous comment [S. Wallentowitz, P.E. Toschek, Phys. Rev. A 72 (2005) 046101] has been insinuated. The suggested loophole for the claim to the respective measurement being impossible, however, requires mathematical modelling that includes the use of non-physical elements.