It depends on the orbit of the targeted satellite. If all debris are going to be at low altitude, reentering quickly and not crossing busy orbits, it’s fine. If

It depends on the orbit of the targeted satellite. If all debris are going to be at low altitude, reentering quickly and not crossing busy orbits, it’s fine. If debris are going to cross highly congested orbits often and for a long time, it’s bad. IIRC the Russian test was pretty bad in that regard