I agree with the OP, with data to back it up. My view is that "definition" is artificial, and deliberately enhanced.
It often happens in the frequency response curves. By using relatively tight peaks and valleys of frequency response, a speaker can bring out certain details that an actually neutral speaker would not, but at the same time, it would do so at the expense of other notes.
I have written quite a bit about the "Stereophile curve" here:
https://speakermakersjourney.blogspot.com/2016/05/stereophile-reviews-data-doesnt-lie.htmlBut as always, you should buy what you like, and enjoy. Whether something is objectively neutral or not is not an absolute marker of value. I just know what neutral is and I personally really like it.
There's a different kind of definition, which when executed well is just neutral you can hear through. This happens through excellent room acoustics, and a speaker to match well with it.
Best,
E