Yes, a slightly modified version that is "tamed" at both ends though.
I have a theory I would like you to explore.
If you look at the FR graphs of expensive high-end headphones, you can see that the majority of them is below the harman target at about 2000hz. The big rise comes a bit later.
(Examples: Sennheiser HE-1, Hifiman Susvara, Denon AH-D9200, T+A Solitaire P, Beyerdynamic T1, Focal Utopia, Austrian Audio HI-X65, Neumann NDH30, Meze Elite, Nectar Hive, Heddphone, Audeze LCD-5.)
I opened a topic about it in the Oratory1990 reddit forums a few months ago. It was discussed if a later rise might correlate with a perception of a bigger soundstage. Many people agreed that they prefer a "later" rise.
https://www.reddit.com/r/oratory1990/comments/x8m80v
Now when you look how Oratory1990 EQd the X3, he also didnt try to "nail" the target but he left the 2000hz area slightly below target.
Maybe this plays a role here, and you could test on other headphones if you can also improve their soundstage by doing so.