  CzeV404 is an SU UMa-type dwarf nova in the period gap. Kara et al. (2021)
(arXiv:2107.02664) recently published photometric and spectroscopic
observations and obtained a mass ratio q=0.16, which is in severe disagreement
of q~0.32 estimated from superhump observations (Bakowska et al., 2014). I here
present what analysis was wrong or outdated in Bakowska et al. (2014) and
provide a new value of q=0.247(5), consistent with the known behavior of
superhumps and the evolution of cataclysmic variables. CzeV404 does not look
like an unusual dwarf nova as suggested by Kara et al. (2021) and I discuss
that the link between SW Sex and SU UMa systems suggested by Kara et al. (2021)
is not supported.
