Mr Weston said: “I don’t know how to read into this.
“I don’t know whether it is more intimate that Prince Harry and Meghan Markle didn’t say something publicly or less.”
Mr O’Neil reflected on how a public message would have improved Meghan and Harry’s standing with the public.
He said: “This would be the nice thing to do.
“It is a mutual thing, just acknowledge Kate and William’s anniversary, put out a tweet or whatever they do.
“That would have done wonders in the public eye.”
Mr Weston added ordinary people send both private and public congratulations for friend and family celebrations.
To mark their 10 year anniversary, William and Kate released a heartwarming video of themselves and their three children enjoying the outdoors.
The 40-second video delighted fans across the world as it allowed a sneak view into the Cambridge’s life.
The video caption read: “Thank you to everyone for the kind messages on our wedding anniversary.
“We are enormously grateful for the 10 years of support we have received in our lives as a family, W and C.”