Yes she picked it up and closed well, which is quite common in 10k races.
Her last 5k was 14:39-
Her 5k PR was 14:51, so obviously this girl was not even running near her best in many of her races. I think the only reason she gets a bad rap is because she is Chinese-
She easily could have held the 2k and 5k records.
I think its also obvious she was more of a mid distance runner moving up, judging from her other PB's, enroute or otherwise and also from the way she ran her splits in the 10k record.
In the top 25 Women performers of the 10k, China has 4, Wang and another from the same race, and 2 more later. Ethiopia has 12(13), so China has a performance standard
I also think more women could have and would break 30 if the event was as competitive as men's events and held as often. Paula Radcliffe could have done it.
The most competitive race other than the Olympic final, which precludes fast times usually, was the Paris race in 2003. If a race like that was held every year we would see more times under 30. The 30 minute barrier for women is almost very similar to the men's 27 barrier, its just women are even less competitive than men in performance standards and unlikely to run at the best.
If you look at other times women have run that far exceed previous standards, Paula Radcliffe ran her Marathon record in London. FloJo ran her record(s) at the time in Indianapolis. Yuliya Pechenkina ran her record in Tula. Women just perform well at home. So why is it surprising when a Chinese women runs fast in Beijing? Its about as surprising as Radcliffe's record was, and likewise as believable to outsiders.