on the ground until the 1:02.8 mark and her team finished the race in 3:42.4. So she and her teammates covered the final 1,350m in 2:40?

3:42 comes to each 400m being covered in between 55-56 seconds. So even if her teammates each ran 50 seconds for their 400m (2:30), she would have had to cover her final 150m in 12 seconds.

So yeah, unless they're all running basically world record times the final 1,350m there's no way her team was 30 seconds behind.