The grinding of the Ukies into burger continues apace.
Like the Russian you quoted said, the Ukrainians drove them from Nikolaev into a "futile" position in Kherson, where they had to flee. The enemy gave them no choice in the matter. Run or die.
Glad you can finally acknowledge that.
they "forgot" to try and secure their flanks for more than half a year.
They blew the dam when Ukraine started their offensive in June. I'm sorry you don't pay any attention to the events in the war as they take place. It explains your confusion on why and when the Russians would want to blow the dam.
Tactically, it is also a setback for any potential Ukrainian assault across the river.
The shape of the downstream part of the Dnipro river has altered significantly, while floodwater currents complicate any potential crossings by Ukrainian forces, making them less likely in the near future.
Russian forces were reportedly moved east from the far bank of the river, to reinforce defensive positions around the Zaporizhzhia front.
Some of Russia’s best-trained units from the airborne and naval infantry, along with units from the well-equipped 49th Combined Arms Army, have now been moved away from the river and sent to plug any gaps the Ukrainians might make in the coming days.
So, to recap since you didn't pay attention while it happened back in June:
When the Ukrainian offensive started the Russians blew the dam to temporarily impede their progress, securing Russia's western flank so they could re-commit forces to confront the axis of attack from Zaporizhia, threatening the land bridge.
The grinding of the Ukies into burger continues apace.