They've got a few people all wrong, Donna Troy specially. Her timeline was given in Titans v1, during whose run lasted for one year, comics time, wherein she was only 22-23. It even references the Teen Titans issue where she said she was not yet 25 and scratches its head over it.
Oh, c'mon, Roy is not that much older than Dick - certainly not 30. But then again, it gets the age difference between some members right. Bruce debuted as Batman at the age of 25, took Dick in 3 years later (Batman: Year 3) when Dick was 12, which makes them at least 16 yrs apart.