This tells the exact moment that Tina Turner finally broke free of her toxic marriage to Ike. This moment also effectively cut her life into two parts. It was not easy and it took some time, but once again it shows the absolute centrality of life and career-changing events that happen to so many different people in their age 36 "Year of Revolution".
It should make readers wonder what is going on, given that it becomes an extreme statistical rarity with the more publicly verifiable cases that add up. However, some stories are more dramatic than others and this one certainly qualifies.