Well, theoretically speaking you shouldn't buy it until you go to a store, listen to it, compare with similar headphones in that price range, and if you like it more than other headphones, you buy it.
But I see what you mean. There is no obvious selling point for these headphones. When Focal entered the market with their Utopia, they advertised it as the only full-sized headphones with a beryllium driver. When Sennheiser started to sell the HD800, it was a huge unique ring driver, never seen in any other headphones. Beyerdynamic promoted their T1 by stressing a super strong magnet. The same can be said about Heddaudio with their almost unique AMT headphones. When Audeze and Hifiman entered the hi-end headphone market, their idea to promote was to tell people how good their very rare back then planar drivers.
And this pair of headphones visually looks like headphones many times cheaper. The driver looks like in other headphone that costs 50 dollars and cheaper. Just google "dynamic driver" and you see something looking almost exactly the same:
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Nothing on their page says why people should buy it for 2500 dollars, except "It sounds so good"(c) -
https://austrian.audio/headphones/thecomposer/
Not good marketing, in my opinion. Only Nomax is trying hard to promote it. Kudos to him. After all, they are his friends.)