They know that it's a long way and a lot more money. Fundamental physics has a habit of paying off in utterly unexpected ways, but that's not really why we do this. It's pure curiosity.
They are grateful that the public seems willing to pay for curiosity. I don't know how long it will last. Though I can say that it's a rounding error in national budgets.
Seriously, this headline is the quantum equivalent of "super expensive catapult observe tallest free fall yet." Or verifying Galileo's free fall experiment with more and more items. It's nice that Newton's laws still hold, but do we really need to test it on the one millionth object?