Rok, answer to your first question.
I used Jarret Evans comparation as metaphore. Sometimes I meet people who 'listen jazz' and have lots of Ecm records, which is ok. But its been known to happen that those same people often have very strong opinions about artistic value of some performer, or about that music and its aesthetcs (which again is nothing wrong per se) but when I discover that their knowledge is limited to a very narrow time frame (usually the more recent one) I cant consider their opinion as a worthy, but just as expression of their taste.
I guess that one cant play (or listen) jazz if does not know 'Body and soul'.
Again, I used that line because here some 'new' music has been under heavy criticism, but the person (Frogman) who posted some of it, knows very well even the 'old' stuff and we cant play that card (limited knowledge) when he is keen to open some new windows.
Its funny that I am acting as advocate to that 'new stuff' when in fact I am on constant search for long forgotten music and performers, but I am curios and I belleive that role of individual is to choose a dialectic method if we want to 'discover the truth'.
Speaking of curiosty, I noticed that everyone likes Miles and Coltrane, up to a point. (Miles, for me, Prestige years and couple albums after)
What if they would try to pursue some of you (us) that their later music has 'soul and beauty' as equal to their earlier work?
Or that perhaps, they could not be tied to that simpler form of expressions?
IMHO there are lot of intersting questions that jazz afc.could or should ask if they want to have better perspective on the subject, and we should welcome discussions, and not insist on uniform opinion or taste.
As for your second question, I cant open those you tube clips. Maybe you could find some another? I will gladly share my thoughts .
In the meantime here is one european artist (belgian, as inspector Poirot)
Francy Boland (born 1929.) 'Playing with trio' from 1967.
https://youtu.be/QyrARKhzsPghttps://youtu.be/ctL6coRgW8Ahttps://youtu.be/C4oCnGqZKg8