If you want flat response but your music has lows that go down to around 20hz, the relative power required to make the 20hz audible to an equivalent volume is exponentially higher than to make 200hz audible. And drums will always sound better if you can hear 20hz, regardless of the genre.

I find even with "western consumer grade headphones", I need to add about +3db to 20hz, 0db to 200hz, -3db at 2khz, and 0db at 20khz, to be able to turn up the volume and hear all the instruments without any single freq range dominating. This makes such an improvement on every pair of headphones I've tried it on, that I wonder who came up with the "standard" frequency response curve of human hearing that the manufacturers are using as reference.

I setup an EQ with that shape on my girlfriend's headphones, and she was surprised how much more comfortable it sounded. Then she got new headphones, tried them out, and immediately said "ew, can you change the sound the way you did before?" I set the EQ in the new headphones' software and "much better."