  Nonequilibrium phase transitions are characterized by the so-called critical
exponents, each of which is related to a different observable. Systems that
share the same set of values for these exponents also share the same
universality class. Thus, it is important that the exponents are named and
treated in a standardized framework. In this comment, we reinterpret the
exponents obtained in [Phys Lett A 379:1246-12 (2015)] for the logistic and
cubic maps in order to correctly state the universality class of their
bifurcations, since these maps may describe the mean-field solution of
stochastic spreading processes.
