They often talk weirdly about the children.
Harry about how Archie cries when Harry comes home because of the stress of his 'job'.
Or Meghan about how she will leave her business to Lili.
Or Archie asks her not to 'work ' so much.
None of that is normal parent/ child interaction.
And this 'at peace' stuff is weird. Why wouldn't young siblings be at peace with each other?
Equally why wouldn't they be squabbling about who gets which scooter?
Normal families squabble, love each other, have peaceful moments, tear your hair out moments, parents do hard boring stuff for the kids, kids are oblivious because they're kids, kids are interested in kid stuff not worrying about their parents 'jobs.'
They are weird about those children.
I suspect Harry can only do fun jester cuddly dad. He presumes this is emotionally supportive and this is all kids need. I suspect when they cry, moan, squabble, don't respond to his hugs, he doesn't know what to do, and sees this as a problem to seek professional help for.
I wouldn't be surprised if those children already have therapists, advising their parents, not because there is anything wrong with the kids but because I suspect from what H says he doesn't have a clue how to deal with the normal messy emotions of children. As he can't deal with his own.