2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/34702We show that some of the recent results reported in gr-qc/0308049 are based on assumptions which are in contrast with general properties of ``Doubly Special Relativity'' and/or with Planck-scale physics models.LaTeX, 5 pages, no figuresGeneral Relativity and Quantum CosmologyHigh Energy Physics - Theorytext