Basically every headphone need EQ, often many of them are terrible without that.Looking at the first graph, and seeing the lounging panther made my head explode. Being forced to use EQ to make a product work means the product is flawed. It's like having to use salt on a gourmet meal. No Bueno.
Meanwhile this headphone is pretty okay even without EQ.
Graphs dont tell us the whole story, maybe u forget about the starting thoughts: " Ultimately headphone measurements are less exact than speakers mostly in bass and above a few kilohertz so keep that in mind as you read these tests. If you think you have an exact idea of a headphone performance, you are likely wrong!"