I suspect it's because they're writing about the art itself and not necessarily the architecture. Sounds like something that could use a bit of an interdisciplinary approach.
Yeah, that's basically the case.I'm an anthropologically trained archaeologist, so I'm super obsessed with context and function, so I get easily irritated
That said, and this is just my suspicion, I suspect because they're focusing on a SPECIFIC piece, they're more interested in the history attached to the art piece itself.