Whilst we can theorise, suspect or debate the motivation of the naming of the baby, there is one thing that I do know for sure. The key will be ‘if’ the Queen knew and was in agreement with the name choice. I wouldn’t like to venture a guess on that one.
My twin brother died in infancy. Two years after his death my Aunt and Uncle used the same name for their son. They never forewarned my parents and whilst my Mother never said a thing to them, nor did she ever forgive them. My point being that we can only speculate, but it’s all down, IMHO, as to whether the Queen knew and approved, or not.
Time will probably tell…