Who on earth doesn't quarrel with their family from time to tome? Who on earth keeps screenshots of the exchanges so they can look at them and marinate in their own rightness? I suppose, someone who was already committed to claim a victim status.
I didn't see anything wrong with the exchange on Catherine's side at all. Meghan's... not so much. And to crown it all, the dresses were all ill-fitting, so Meghan and her oh so experienced team of French couture ladies (how long did you think it took to teach Harry the phrase? Manly men, the lads can't say Givenchi from Dior with their lives on the line.) So it was Harry who found his poor fiancee in tears? Not Catherine? Why, then, did Meghan make it sound like everything happened right in front of Catherine who saw her tears and "owned it", making it sound as if it was a crime?
When are Meghan and Harry going to own it that they scheduled their wedding for a time when Catherine and Zara would be as inconvenienced as possible? With Zara, it was evident.
Overall, the exchange striked me as completely bland and a non-issue. The fact that it was preserved and published is the issue here, IMO.