Related, I have seen one guy, over and over say "Why isn't Ukraine hitting Russian electric train transformer stations". I don't have a good answer, most of Russia's rail network is electric, transformers blow up easily, there are many of them, and they would be very slow to replace. Ukraine clearly has deep strike capabilities, and Russia cant defend every transformer. I don't think it's a humanitarian issue, or at this point even an issue with the US telling Ukraine they can't hit those targets.
So I stand by my statement that his assessment is not wrong, even if it isn't as outcome changing as some may hope. It is however one of the many straws heaped upon the camel's back.
As for the transformer issue, I would imagine that these are somewhat related. Their train based logistics are inefficient, so Ukraine doesn't need to stop the trains running. If they did the russians may find a more efficient solution.
I would compare it to the Natanz cyber attack which reportedly cost a fortune and caused lots of business losses around the world. It only set the Iranian uranium refinement back a few percent.
Then Obama comes and talks to them, strikes a deal. That solved the issue entirely and cost much less. Of course then Trump comes and messes it all up again but that's another story.
https://www.nti.org/education-center/facilities/natanz-enric...