I was responding to the use awhile back of "academics" as some sort of insult (this always has my head spinning when I can be bothered to care at all - which is a more impersonal subject for another thread, since I at that point immediately cease to care about the attitude of the person expressing the sentiment, for what little that is worth) - but in regards Shostakovich am thinking more of - for example- works like his 12th quartet, actually. (Or sections perhaps of his - remarkable to my ears and also quite good to my ears - 14th symphony...?) (With Weinberg, even more thoroughgoingly and obviously, his 12th quartet, but if I recall, the example there is not good, since Weinberg, unlike Shostakovich, was neither professor nor held official positions.)
But you hit on something when you mention the 4th symphony, since serial techniques refer to one thing, and atonality (or non-tonality) another- quite a few times in the same work, but quite a few times not.
Still haven't listened to the Jeffrey Jacob 3rd of 2009, as to Living Symphonists, but meaning to soon.