I agree with you, David.
I listen to someone like John Dikeman, good player who's clearly done a lot of listening to Wright and Brötzmann, whom I also love, not to mention Vandermark, and it just doesn't hit for me. Michael Foster is another, perhaps less nuanced example among the younger set. Going from zero to nutting in .02 seconds and holding it there for 20+ minutes in 2015 isn't what I want to hear, unless it's from someone who can really make that mean something. Usually that person has been making musical constructions and expressions for far longer than Foster, Dikeman or whomever has been alive.
Being a thirty-year-old jazz musician in 2015 also means something different than it did in 1965 or 1975, I'm guessing. The statements one makes carry different weight.