Kapovich's unknotted Menger-curve and hyperbolic-quotient conjecture

Let $G_{6,3}=\langle a_0,\cdots,a_5\mid a_i^3=id,\ a_ia_{i+1}=a_{i+1}a_i,\ i\in\mathbb{Z}/6\mathbb{Z}\rangle$ be the hyperbolic group with boundary the Menger curve, and let $\rho:G_{6,3}\to\mathbf{PU}(2,1)$ be Granier's discrete, convex-cocompact, faithful representation. Write $\Lambda$ for the limit set of $\rho(G_{6,3})$, let $\mathcal{M}$ be the standard Menger curve in $\mathbb{R}^3\subset\mathbb{S}^3$, and let $\Omega$ be the domain of discontinuity. Kapovich's conjecture. The limit set $\Lambda$ is ambient-isotopic to $\mathcal{M}$ in $\mathbb{S}^3$, and the quotient 3-manifold $\Omega/\rho(G_{6,3})$ is hyperbolic. The paper's abstract states that it proves the hyperbolicity assertion in the corresponding orbifold setting, while the supplied text does not state a resolution of the unknottedness assertion.