iPad 10th Gen doesn't even support the Apple Pencil Pro. Are they using any Apple Pencils at all?
(incidentally they mostly use USB-C apple pencils and some clone ones when they lose them and the parents don't want to buy a genuine replacement one)
I don't understand why you thought it was constructive to point out the difference between a "software problem Vs. a software problem only when the pen is used." The article was very clear on that point already, it isn't adding to the conversation.