That's just flat out untrue.
Just because you get used to a particular sound so much that you think that does not necessarily make it that great in reality.
We can also reverse this by observing the "wonky 007" carrying other traits one may not pay attention to at first.
This is one test track I use nowadays because it is easy to get a sense of the tonal balance or to distinguish which headphone reproduces the kick drum, cymbal or vocal better. Not saying this is a valid test, just saying that what the guy says helps a bit at determining where I'm actually at, although listening to it on speakers that were used for mixing would be a better reference point.
(Of course we also need to believe that a particular mix is "correct", which people can argue about all day long as well.)
The X9000 is above average at best (to my ears anyway considering its cost, there are recordings where it may score higher, but I already wrote about only accepting this "feature" in a lower-end model).
Some characteristics are great, but there are others, which are unimpressive. Feels no more reference (or less like a 'hi-fi product') than others costing way less.
Some of it simply comes from being an electrostat where for instance timbre can be problematic. It is what it is, take it or leave it.
And personally, I don't believe in amps, EQ, mods etc. 'magically eliminating' those things.
So maybe the next version will not be 'better', as tuning it to be 'better' without other drawbacks might be an impossible task by itself.
I don't expect to read about those in this thread at all, because I rarely see somewhat less subjective articles anymore anywhere.
People want to upvote positive thoughts, they also don't want to judge their own gear negatively, I get it.
It just annoys me when I see opinions like these that are so blindsided.
(My opinions should be considered as additional takes towards those, not as hate towards a particular headphone. If anyone is going to claim that the next version is "the one", that basically invalidates everything that was previously said about this model.)