The standard protocol of cordoning of complete streets through which the royal are traveling has been changed by the security forces based on the royal decree by the king
After the infamous Megxit: the exit of Duchess Meghan Markle and her husband Prince Harry from the royal family due to tensions with the Queen lead to a rift between the brothers
It is understood that the Duke and Duchess of Sussex made the announcement on their Instagram account without first discussing with other royal family members