I'm also baffled by the "fr only matters" stereotype. Who says this? Anyone can easily disprove this by buying a set of awful headphones and eq'ing them to a graph, only for them to sound arguably more shit. FR doesn't tell the whole story, but it's way better than nothing, and reviewers have gotten a while lot better about nitpicking technical performance, so you can go to them if you want info about a headphone's audio quality