I may be COMPLETELY wrong on this... (and I am sure someone here can correct me)
But didn't the SS table start with the 2015s? I know when I was looking for one at the end of last year it was new model with SS table and gourmet system, or last years model with plastic table and no gourmet.
I can't imagine having issues with the center piece falling out during cooking though. I guess when moving the grate out of the way you would have to move the centerpiece so it doesn't fall out... But it fits in place pretty damn sturdy.