The no-short-separating-arc conjecture for CAT(0) boundaries

Let $G$ be a one-ended group acting geometrically on a CAT(0) space $X$, and let $\partial X$ denote its boundary. Assume that $\partial X$ has no finite cut. No-short-separating-arc conjecture. No arc of Tits length $<2\pi$ separates $\partial X$. This conjecture proposes that, in the absence of finite cuts, CAT(0) boundaries cannot be separated by sufficiently short Tits-geodesic arcs; its status is not resolved in the supplied source.