Wasn't the neutron star merger, that was followed up on by multiple optical (and even neutrino detections, iirc), a pretty good validation? I mean, how else wo

Wasn't the neutron star merger, that was followed up on by multiple optical (and even neutrino detections, iirc), a pretty good validation? I mean, how else would they have known what to look for? Update: this is the event I'm talking about: https://astrobites.org/2017/10/16/multi-messenger-observations-of-a-binary-neutron-star-merger/ https://astrobites.org/2017/10/16/multi-messenger-observatio... Also, are there any peer-reviewed, serious criticisms of the existing gravitational wave observations papers that I could read? I've read the objections a few times now, but only in popular media, not in scientific discourse.