It's hard to tell from that picture but it kind of looks like it has one. Only a few of the 8th and 9th gen civic's came with a trunk lid insulator. And the coupes didn't have them at all. While it isn't necessary it really finishes off the look of the trunk.
I haven't read about that in any list of features or whatnot. I would assume its included. And if it wasn't, I wouldn't care that much. I mean, people do not look at the inside of the trunk lid very often.