The EXL-50U preprint reveals that neutral-beam-injected ions can be re-accelerated to 2.5 times injection energy through repeated interactions with chains of small magnetic islands, without triggering the disruptive MHD bursts that plague larger reconnection events. Simulations using device-specific equilibria show these islands selectively energize only the fast-ion seed population while leaving thermal ions largely untouched, offering a pathway to auxiliary heating that sidesteps the confinement trade-offs seen in conventional sawtooth or fishbone activity. Unlike the global reconnections documented on NSTX-U and MAST, which often flatten fast-ion profiles and degrade performance, the EXL-50U mechanism appears spatially localized and statistically ubiquitous across operating regimes. This finding connects to earlier theoretical work on multi-island dynamics in reversed-field pinches and stellarators, where similar micro-reconnection was predicted to produce non-thermal tails without macroscopic transport. What the original report underplays is the potential regulatory implication: if small-island reconnection proves controllable via modest changes in q-profile or beam geometry, it could relax the stringent fast-ion stability limits that currently constrain high-beta spherical-torus scenarios. Caveats remain; the study rests on a single-device observation campaign whose statistical sample size is not quantified and relies on kinetic-MHD hybrid simulations whose resistivity and collision operators may not fully capture edge turbulence effects. Still, the absence of large-scale MHD correlation distinguishes this channel from prior claims of anomalous ion heating and merits targeted validation on other NBI-equipped devices.