Is this a turning point in the war?

Russian Defense Minister Sergei Shoigu ordered his troops to withdraw from the southern city of Kherson on Wednesday, marking a significant retreat for Russia.
The city of Kherson is situated to the north of the Dnipro River on the left bank.
Defense Minister Shoigu and General Sergey Surovikin said that troops should regroup on the other side of the river, as Ukrainian forces advance.
"Having comprehensively assessed the current situation, it is proposed to take up defense along the left (eastern) bank of the Dnipro River," said Surovikin in a televised briefing.
Surovikin said that it was no longer possible to deliver supplies to the city of Kherson and other areas on the left bank of the river; Shoigu agreed with his proposal to retreat and set up defenses on the other side.
"Proceed with the withdrawal of troops and take all measures to ensure the safe transfer of personnel, weapons and equipment across the Dnipro River," Shoigu told Surovikin.
Shoigu was on a visit to the region for briefings with military commanders.