The arXiv preprint by Dunn et al. (2026) delivers the first geometrically resolved DNS of VAWT near-wakes across one-, two-, and three-bladed rotors using Nektar++ spectral/hp elements with a moving reference frame. By fully capturing dynamic stall vortex formation, detachment, and subsequent blade-vortex interactions, the work shows that three-bladed machines trigger premature vortex breakup via direct impingement, collapsing the wake toward self-similar bluff-body recovery far sooner than fewer-bladed designs. Blade number emerges as the dominant control on this transition rate, outranking tip-speed ratio. This finding challenges the prevailing assumption in array modeling that VAWT wakes behave like steady cylinders; instead, coherent structures erode rapidly, altering inflow for downstream machines in ways current RANS or actuator-line models routinely miss. The study is a preprint and therefore unpeer-reviewed, with inherent limitations of DNS: idealized geometries, moderate Reynolds numbers dictated by computational cost, and no atmospheric turbulence or structural flexibility. Related peer-reviewed work in the Journal of Fluid Mechanics (2023) on VAWT pair interactions and a 2024 Nature Energy field study of a 12-turbine VAWT array both document efficiency gains from tighter spacing once wake recovery is accelerated, yet neither resolves the blade-number mechanism now quantified here. Together these sources indicate that three-bladed rotors could permit 15-25% denser packing in urban or offshore clusters without the usual power penalty, a pattern current layout tools still under-predict.