Of course it was! This is onshore basket weaving that's then floated into position and sunk. Different department.
But I mean, they could partially bypass the carbon cost associated with transport and installation if it was woven in place. Even more so if they could weave without costly respiratory equipment etc.
I remember that the top person in the math department in college had transferred from dance because it was too difficult.
They always present underwater basket weaving as being easy but I imagine it’d be quite challenging.
The idea is that underwater basket weaving has no utility in the real world, not that it is easy.
I had to drop the class because I couldn't hold my breath long enough to do much weaving.