I guess the engineer is saying we should address coconut trees because of falling coconuts, but the physical and geological effects of fracking don't matter because they're below the ground.

Considering the logical breadth and wiseness of the statement, I think the logical conclusion is to grant this engineer his own fleet of fracking equipment and a company to run it. Because then he'd make money and money is more money than no money. Everyone likes money but nobody likes a coconut to the head.

Drill on!