Reasoning. (1) Stability in quantum theory requires protection by a conservation law (baryon number, lepton number, etc.); a hole formed from two partons with mass <~ 10 M_D has no such protecting charge, so all decay channels to light matter are open, and generically an allowed decay occurs on the natural timescale — here 1/M_D ~ 10^-27 s. (2) Hawking’s original derivation has a known weak point (trans-Planckian modes), but the result has been rederived by routes that avoid or confront it: trace-anomaly stress-tensor constructions (Christensen-Fulling and higher-dimensional successors), modified short-distance dispersion, and condensed-matter analog systems exhibiting the effect (“despite the shaky derivation, the effect is almost certainly right”); the unresolved information-paradox issues concern subtle corrections to exact thermality, not whether decay occurs. (3) The only stable variant not already excluded by Earth/Sun survival requires the hole to be neutral, i.e. Schwinger (chromo-)electric discharge must operate; but Schwinger pair creation rests on the same quantum principles as Hawking emission — the one distinction is that discharge can be described as pair production outside the horizon while Hawking radiation is trans-horizon — so suppressing the latter but not the former requires artificial boundary conditions at the horizon with no known consistent microphysics. The paper nevertheless adopts the scenario as a working hypothesis precisely to test it against astrophysical data.
Step 6 — validity verdict
approved / checked. Reconstruction — premises: (i) quantum stability requires protection by a conservation law; (ii) a hole formed from two partons at <~10 M_D carries no conserved charge not carried by ordinary matter; (iii) the only dimensionful timescale is 1/M_D ~ 1e-27 s and no small parameter suppresses the open channels; (iv) Schwinger (chromo-)electric discharge and Hawking emission rest on the same vacuum-pair-creation principles, differing only in where the pair is created relative to the horizon. Load-bearing steps: (i)+(ii) open all decay channels to light matter, (iii) makes decay at ~1e-27 s the generic outcome; and (iv) means a scenario keeping discharge while deleting Hawking decay needs horizon boundary conditions with no known consistent microphysics. The hidden premise — “no known consistent framework” is not “logically impossible” — is honored by the hedged conclusion (“nearly self-contradictory”) and by the source itself adopting the scenario as a working hypothesis to test empirically; nothing stronger is claimed than the premises license. Traced; valid.