To be clear, Im not in the Russia Is Now Unbeatable camp. Just need that to be understood up front.
I'm saying their strike capability has improved, slowly and patchily, but they have improved. They have had a string of strike successes in the last six months and while It's abysmal compared to what they should have, it's still improving.
Critically, there's no counter-pressure on that. The success rate will trend inevitably up as experience is gained, systems improved and tactics honed.
Often in this war whatever Rus starts to improve on, UKR finds a counter to, either organically with what they have or ekse provided by allies.
But as a data point on a slowly improving line that's curving steadily up, not down, the concerted, concentrated and rapid destruction of a large city's electrical network is not small. Its repeatable and Improvable.