Ever since NASA chief's comment, the arguments have been very polarised. What NASA said is scientifically accurate & being one of the major stake holder in ISS it has a duty to tell its opinion. There are people in International Space Station, don't forget that their family on earth would want an answer from NASA for such incidents.
The issue in the country seems to be, not what NASA said; but why did it say that!
Yes, US has conducted similar tests & its debris went further in apogee as well & since it didn't change orbit[second application of delta-v is required to do that]; it decayed eventually. Same will happen with the debris we caused as there is not much change in perigee.
If ASATs renew new arms race across the planet & everyone starts blowing satellites, it's not good for the humanity.
If Israel can enforce deterrence as a nuclear power without conducting or acknowledging major nuclear tests, India can project space warfare ready without indulging in such activities; after all there was no doubt about our rocket engineering capabilities to start with.
Edit : Typo