So I'm catching up on your report but had to comment on this part - we were in WDW right after you left. Our first night, we had a reservation at Jiko. We were seated near a family with a set of parents, their 2 young kids, and 2 sets of in-laws. The little girl in the family was watching something on a phone and the volume was INSANE. Another guy 2-3 tables over actually came and told them to turn the phone down (man was I relieved). The one set of grandparents just would not let it go...the one grandfather actually went up to the table of the guy who asked them to turn the phone down and got in his face and everything! The Jiko staff intervened (I was super impressed with how quickly they diffused the situation) but even after that, the one set of grandparents just would not shut up about it. They tried to get us to agree with them (Mr. Ariel484 was just like, "NOPE, we're not involved"), they kept relaying the story and being all huffy about it, etc. Like this guy was wrong for asking their precious angel to turn the volume down in a restaurant - and a Signature, at that. IT WAS SO AWKWARD. Thankfully they left soon after.
All that to say...that was one of our "are people always like this?" moments, and I'm wondering if it was the same family you encountered. So obnoxious!