I think overstating their broad-ness is core to the hype-cycle going on. Everyone wants to believe—or wants a buyer to believe—that a machine which can grow documents about X is just as good (and reliable) as actually creating X.
Since APIs exist (including APIs that allow you to get a human to execute the task), a machine which can grow specs about X is able to create real-world X in many, many situations.
A machine which can define a valid CAD document can get the actual product built (even if the building requires manual assembly).
I think overstating their broad-ness is core to the hype-cycle going on. Everyone wants to believe—or wants a buyer to believe—that a machine which can grow documents about X is just as good (and reliable) as actually creating X.