The arXiv preprint 2605.22960 presents gyrokinetic simulations targeting divertor heat exhaust in spherical tokamaks, a configuration prized for its compact geometry and high beta but plagued by narrow scrape-off layers that concentrate extreme fluxes on plasma-facing components. Unlike fluid-based models common in reactor scoping studies, the work employs full-f gyrokinetic treatment to capture kinetic instabilities and turbulence that drive non-diffusive transport, revealing filamentary structures and intermittent bursts that standard two-point models systematically underpredict. Methodology relies on nonlinear simulations with realistic magnetic geometry and sheath boundary conditions, though the study uses idealized deuterium plasmas without impurities or neutral recycling, limiting direct applicability to reactor conditions. This preprint status means findings await peer review and experimental validation on devices like MAST-U or NSTX-U. Conventional coverage of spherical tokamak programs often emphasizes overall device compactness while overlooking how aspect-ratio-driven flux expansion interacts with gyro-radius-scale turbulence, a gap this modeling directly addresses. Related work in Chang et al. (Phys. Plasmas, 2020) using the XGC1 code on conventional tokamak edges demonstrated that kinetic effects can increase peak heat loads by 30-50% over fluid predictions; applying similar scrutiny here suggests spherical tokamaks may require even more aggressive divertor tilting or liquid-metal solutions than currently planned for STEP. A second synthesis with Kirk et al. (Nucl. Fusion, 2022) on MAST divertor experiments shows observed ELM-free regimes still exhibit turbulent filament heat loads exceeding 10 MW/m^{2}, patterns the new simulations indicate could be mitigated by optimized X-point shaping but only if neoclassical and turbulent contributions are self-consistently evolved. Limitations include absence of three-dimensional effects from error fields and modest grid resolution that may damp high-k modes. These insights imply next-generation engineering must integrate gyrokinetic divertor modules into design workflows rather than relying on empirical scaling laws alone.