Do you have a copy of the Mills&Ray paper Aepervius cites? If so, could you please post a link (one that does not have a paywall)?You are not distinguishing between the formation of hydrino, which has a spectral emission, and already existing hydrino, which does not.
I'm still looking, but so far I've been able to read only the abstract, and some (all?) Figures and Tables, and those only as squished small images. However, that limited window seems to be more consistent with what Aepervius wrote than what you did.