Not sure why everyone keeps bringing up PS3 when PS3 support was dropped 5 years ago. And 32-bit Windows support was dropped 3 years ago.

Is it an oversight? Possibly. Other than aquariums, I don't think they've revisited any of the specific item placement limits for housing.

Could it be intentional design limitation for reasons other than technical? Possibly. It's not like the Indirect lighting items are the only ones with limits.

Seems like it would be a good question to pose the next time they take questions for a Live Letter Q&A.