In general, I believe that the most important thing in a publication, at least for me, is how much personality a person puts in it and how much he develops his theme which can be comprehensively in a huge text or in a specific way with few words.
My all upvotes come as a result of manual curation. 100% manual.
Reading takes time.
Huge posts takes lots and lots of time.
So personally I see HUGE posts rather as negative, not something what shall force me top move the voting slider more to the right.
Smth very huge may be end with my SKIP, without any reading or voting (unless the post subj is smth I am personally very much interested.)
This your post is just about the optimal size , as I see it ( The ENG part)
I agree with you very much. When I see that a publication is very long, I lose interest easily, unless it is a subject that I really like. And yet, some content ends up exceeding the word limits for me, it is often unnecessary.