I think it was a moment which is quite typical in most families and was a normal kind of run in between mothers-in-law and daughters-in-law, which are almost always about the children/grandchildren. It was just unfortunate this one was in public and involved a Royal Family.
However if I understand your analysis correctly, you are saying the reason for the scene was that
Q Sofia breached royal protocol and Q Letizia, quickly reacted to Q Sofia's alleged breach and tried to reinforce the correct precedence, in doing so getting into a tense few moments with her mother-in-law and husband, while her father-in-law looks on absolutely confused by what is being said.
Isn't that kind of worse though?
Even though I think Q Letizia reacted incorrectly in the circumstances, I can have considerable sympathy for a woman who thinks her child is not being treated properly or forced to do something she doesn't want to do, even if the person doing it is her grandma.
However the idea that Q Letizia reacted like that because Q Sofia may have messed up the correct precedence of leaving the Cathedral, I am really struggling with that.
If it were true how highly strung must Q Letizia be? Just leaving the house in her morning must stress her out.
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