Sounds more like an exotic material that has hired a P.R. team to find a niche.
Diamonds on the other hand are ubiquitous in industrial applications.
I think it is one of those materials that will be everywhere eventually as it gets understood. It seems too simple a substance to not be widely useful.
“Graphene is a zero-gap semiconductor, because its conduction and valence bands meet at the Dirac points. The Dirac points are six locations in momentum space, on the edge of the Brillouin zone, divided into two non-equivalent sets of three points. The two sets are labeled K and K’. The sets give graphene a valley degeneracy of gv = 2. By contrast, for traditional semiconductors the primary point of interest is generally Γ, where momentum is zero. Four electronic properties separate it from other condensed matter systems.”