Curious?

Based on the title, I expected you to go on to explain how lobsters are giant meaty bottom-feeding insects that smell like fish. A fleshy cockroach with claws and a visible poop track splayed out on your dinner plate, straight from hoovering the detritus of the sea. But no. I hear some people even put lobster in their mouths. To each his own.

As you pointed out knowledge is only useful in a given context. I just had two brief thoughts about that:
(1) Over simplification & over generalization are two ways of over expanding the contextual validity of a given set of knowledge. The vanity of trying to create "neat" models of the world we live in.
(2) Change is an important factor that is not given much room within over simplified knowledge models. There are less changeable components and each evolutionary step would be radical. Complex models on the other hand have man rough edges that may easily lend themselves to change. (maybe not paradigm shift)