What the researchers from Stanford and SLAC did was interesting enough without the hyperbole and mis-statement. On a smooth copper surface they used a scanning electron microscope to position carbon monoxide molecules in a pattern that mimicked the holes in a graphene lattice. Electrons in the copper surface avoid the CO molecules on the surface, and so behave as though they were really in a graphene lattice. But more than that, when the researchers put the CO molecules on in a distorted pattern, the electrons behaved as though the lattice was distorted e.g. by a magnetic field. And all worked out as calculated.
So this might be a test-bed for predicting how materials behave in strong magnetic fields--up to the point where real fields would start causing substantial distortions in real molecules. Then the model would fall down.
The drawback is the rather tedious placement of the molecules. I find it amazing that we can do that at all, much less plant so many, but they do it.