From an artistic standpoint I can see his claim, or at least a sample of it. That games today are getting pretty derivative of each other. However that sort of thing existed even Back Then, it's just the aesthetics have inverted. So instead of crazy nonsensical character designs with Saturday Morning appeal the norm, we get the Badass Gruff Oh Please Take Us Serious Because We Swear We're Mature Adolescent lot. The latter wasn't seen as frequent Back Then and the former is a harder lot to come by now.
That said, the quality of art assets, artistic production, aesthetics, and world building are done with much more care and deliberation today. Maybe that's part in parcel why they don't inspire (if they don't that is)? Many games today are visually defined to such a degree there's small room for interpretation - older games had small sprites, ugly polys, and smatterings of concept art to go off of for player visual cues.
For all I know though there are just as many (if not more) people creating as much fan art for God of War, Gears of War, Modern Warfare, Halo, et al as anything from Back Then. I know there's no shortage of fan lovin' for WoW and that isn't as ancient as say, the original SMB.

