You are hardly the only one; that line arose in a description of a question asked at a September 2008 reading given by a couple of writers whose names totally escape me now — the description of the question so took my breath away that I immediately lost all of the details. In essence, the questioner asked the two writers whether Wallace’s suicide — which had taken place a single-digit number of days before — could be understood as a literary gesture. And at least one of the authors gave a sputtery, horrified “oh my god are you kidding me” as a response. I’ve tried to google the details, but am coming up dry; I’ll see if I can get them from Lee.