According to royal historian Robert Lacey, Prince Harry’s mental series on Apple TV+ is essential, yet it is another another setback for the royal family.

Harry, 36, co-created the five-part Apple TV+ docuseries The Me You Can’t See with Oprah Winfrey, in which he openly discusses his upbringing in the royal family, how he takes after his late mother Princess Diana, how he’s changed as a person since becoming a father with wife Meghan Markle, and how much he’s grown mentally after years of therapy.

Throughout the series, the 36-year-old spoke candidly about his interactions with the British royal family, as well as his own personal battles with trauma and sorrow.

“The world is a better place for what Harry has done,” royal historian Robert Lacey said in this week’s edition of People magazine. “But this is another blow for the British crown and royal family.”

Bryony Gordon, a mental health advocate, added that Prince Harry is doing “an important form of duty” by breaking down the stigma around mental illness. She backs Prince Harry and is perplexed by the outpouring of rage aimed at him after he revealed his issues with anxiety in the aftermath of his mother, Princess Diana’s, death.

“This is a man who, at the age of 12, was sent out to walk behind his mother’s coffin and console the masses outside Kensington Palace,” she continued. “I just don’t understand why we’re now angry with him that that might have affected him.”

According to the docuseries, Prince Harry’s father, Prince Charles, refused to challenge the rigors of royal life.

“My father used to say to me when I was younger, ‘Well, it was like that for me, so it’s going to be like that for you,'” Harry said in the mental health series. “That doesn’t make sense — just because you suffered, that doesn’t mean that your kids have to suffer, in fact quite the opposite. If you suffered, do everything you can to make sure that whatever negative experiences that you had, you can make it right for your kids.”

“Isn’t this all about breaking the cycle?’ he asked. “Isn’t this all about making sure that history doesn’t repeat itself?”

Harry highlighted the trauma of losing his mother at such a young age in the series. Having been “chased” by the paparazzi as a youngster, Harry blamed the Prince of Wales for not doing more to safeguard him and his older brother, Prince William.

“My father used to say to me when I was younger … ‘Well, it was like that for me, so it’s going to be like that for you,’” Harry stated.