  In the manuscript arXiv:2306.07869v1, N. L. Wang and co-authors report the
results of a near-infrared pump / terahertz probe study in the stripe-ordered
cuprate La$_{1.875}$Ba$_{0.125}$CuO$_4$. They measured a change in optical
conductivity, but did not find signatures of transient superconductivity. From
this observation they extrapolate that in all cuprates in which striped states
have been excited with light, there must be no light-induced superconductivity.
They conclude that "transient superconductivity cannot be induced by melting of
the competing stripe orders with pump pulses whose photon energy is much higher
than the superconducting gap of cuprates." Here we show that this extrapolation
is unwarranted. First, the absence of light-induced superconductivity in this
particular compound was already reported in a previous paper, which instead
showed positive evidence for La$_{1.885}$Ba$_{0.115}$CuO$_4$. In addition, the
experiment discussed here used photo-excitation with too low fluence and at a
suboptimal wavelength. More broadly, a negative result in one compound is
rarely compelling indication of the absence of an effect in an entire class of
materials.
