  We critically address the recent experiment [Science 382, 907 (2023)] on
nonequilibrium transport and noise in a strange metal YbRh2Si2 patterned into
the nanowire shape. In the long device, resistivity, differential resistance
and current noise data seem to be consistent allowing us to extract
electron-phonon coupling and the temperature dependence of electron-phonon
scattering length. The obtained values can be reconciled with the experimental
data for the short device only assuming the significant contact resistance. We
discuss its possible origin as due to the current redistribution between
YbRh2Si2 and its gold covering, and reveal that this redistribution contact
resistance should be proportional to the YbRh2Si2 resistivity. We also discuss
some subtleties of the noise measurements. Overall, neglecting electron-phonon
energy relaxation even in the shortest devices is arguable so that the observed
shot noise suppression can hardly be attributed to the failure of quasiparticle
concept.
