yes, hal: you are the only writer who can't sleep at night because you are furiously trying to dream up ways to be more "edgy."  
disclaimer: when this piece was first considered for jewcy, i argued vociferously against it.  not because its points couldn't possibly be valid (if made by a writer who has read enough contemporary jewish fiction to articulate properly, that is), and not because i happen to be the author of a recent collection of short fiction set in jewish contexts and oft-described by critics as, indeed, "edgy".  but because, simply, niedzviecki is an extraordinarily lacking lit-crit aspirant.  derek rubin's century-spanning "who we are" anthology is broad-based and wonderful, but not at all useful to this discussion.  "lost tribe" is interesting and useful, but not remotely enough on which to base these sort of generalizations.  no one has ever claimed that joshua braff is anything other than a marginal celeb writing lad-lit.  the simplistic take on shteyngart is just sad. 
the goal of serious fiction is to fully inhabit lives that are not quite but maybe almost possibly our own; to breathe life into worlds and tell the whole truth about characters.  to see how far into the complicated mess of an almost-person we can get.  it is not, nor has it ever been, to "shock".  like seeking revenge through fiction, seeking edginess just stinks to high heaven.  (trust me on this: i teach undergraduate creative writing.)  ginsburg was shocking because he told his own whole truth in a time when no one else had the balls to do so.  and please: let us not romanticize the consequences for the brave souls who do such things.
some authors whose work would be useful to this discussion, to name but a very few:  binnie kirshenbaum, shalom auslander, sam lipsyte, julie orringer, rachel kadish, shira nayman, jennifer gilmore, etgar keret, allegra goodman, elizabeth mccracken, david bezmozgis, aaron hamburger, daphne merkin, tova mirvis, aimee bender, amy sohn, thisbe nissen, jonathan lethem.  
hal, man, listen: it sucks that you weren born too late to cavort with roth and bellow and malamud and bruce jay friedman.  bummer that your efforts to thwart some old standard of american jewish upstandingness by lusting after shiksas are about three decades stale.  you want to be "edgy"?  try letting the self-aggrandizement and navel-gazing and ambition drop.  try telling your own simple, naked truth.  that's what any meaningful writing does, be it southeast asian lit, african american lit, white man lit, queer lit, canadian lit, jewish lit, muslim lit, spanish lit, or mutt lit.  and it's about as shocking, as edgy, as raw, as rare, and truly as threatening as any literature ever gets.