They probably just can't get their kit in the gap. ;)
Actually, there's more to QM than Heisenberg. For example, the position of an electron in a Hydrogen Atom is unknowable, thanks to wave-particle duality and the need for its Energy etc.. to be quantised.
Plus evanescent waves are little buggers. For example, frustrated total internal reflection (which is what is being described in the article) is a form of "tunnelling" that can be modelled classically using Maxwell's equations without QM. And the PR link above claims the photon's *direction* is imaginary, which, if correct, would make it tough to pin them down.