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The Regge exchange model used by Dzierba et al. is shown to be questionable,since the pion pole term is not allowed. Hence the Regge amplitudes in theircalculation are exaggerated. The amount of kinematic reflection in the massspectrum of the (nK+) system, which is one decay channel of a possiblepentaquark, is not well justified in the fitting procedure used by Dzierba etal., as shown by comparison with the (K+K-) invariant mass spectrum, which isone decay channel of the a_2 and f_2 tensor mesons. While kinematic reflectionsare still a concern in some papers that have presented evidence for thepentaquark, better quantitative calculations are needed to demonstrate thesignificance of this effect.Comment: Comment submitted to Phys. Rev. D (no figures

Comment on “The evidence for a pentaquark signal and kinematic reflections”