We show that the regularized-big-bang-singularity model discussed in Phys. Rev. D , 023536 (2019), suffers from the same drawbacks of the Friedmann-Lema^{}tre-Robertson-Walker (FLRW) universe, in that the $T$-odd solution has the same divergences at the initial new time $T$ as the FLRW universe, while the $T$-even solution is exempt from such divergences.