There's an interesting unstated major premise here, that "art" exclusively means pictures.
Spiderweb tends to focus on different aspects of game making that are admittedly a lot less visual, but are arguably no less artistic. This is a wildly hyperbolic analogy, but it seems to me that suggesting that Jeff Vogel doesn't care much about art because his games are weak on the visuals is a bit like suggesting that Led Zeppelin didn't care so much about art because their shows didn't offer the same visual spectacle as a GWAR performance.
Spiderweb tends to focus on different aspects of game making that are admittedly a lot less visual, but are arguably no less artistic. This is a wildly hyperbolic analogy, but it seems to me that suggesting that Jeff Vogel doesn't care much about art because his games are weak on the visuals is a bit like suggesting that Led Zeppelin didn't care so much about art because their shows didn't offer the same visual spectacle as a GWAR performance.