Wormald proposes to remove the anomalous absorption of photons in the light clock by making a relativistic correction for absorption frequencies in the mirrors. This would require different corrections for atoms in mirrors 1 and 2, even though both have the same velocity relative to the observer. A relativistic time transformation by direct velocity dependence of time rate is different from a transformation between clocks with Lorentz-invariant proper time readings. With ascription of an invariant proper time to the photon clock, (...) one loses its property of directly illustrating the relativistic time transformation. (shrink)