Its a bit like 2 people who worked in a restaurant and who had walked out of their jobs, coming back and dressing in their waiting staff uniforms and going round the place again serving meals, when the thing is they dont work there any more. THe RF are photographed at teh Cenotaph because it is part of their jobs to be seen laying wreaths and representing the nation in mourning for those who have died. They need to be seen publicly working because that is the nature of their job.. and they recognise that as public figures there will be some interest in their private activities as well, so they usually allow some photographs at private events like holiday. Harry claimed in last November that he couldn't stand the public nature of his job, the way that cameras clicked when following him at work or at play, and now he's deliberately creating a job where none exists and getting a cameraman to come along and record it..The royals on the balcony at the Cenotaph are at an official event, acting in support of the monarch. They’re present as part of the British Royal Family and are photographed as such. Harry and Meghan were acting as private individuals at the cemetery but they paid a photographer to come along and take pictures of them trying their best to visually represent the official nature of the British ceremony.
It would be completely different if Harry had come back to participate in the official ceremony. Or if the British government had asked him to represent the Queen at some sort of official ceremony in the US. But all these latest pictures show are two people (who could not have made it more clear that traditional, official royal life wasn’t for them) representing no one but themselves.
The current senior working royals will occasionally show activities of a “private” nature with the understanding that they’re still acting as public entities, and then only as relatively rare occurrences that always dovetail with their official duties.