Is it bad that she could likely easily swing the "injuries" into a positive by simply reskinning it so that they are form an accident in starting one of the traditional martial arts (like say Akido)? That Japan has a very strong tradition of swordsmanship to this day seems to be lost on them.
But ya, this is an Entitled Karen and Kevin looking for reasons to explode at someone so they can "force the blame" on hem for their own failings.
They are stuck up and it shows, from their little interaction with Chris they are likely bigoted against anyone at a lower station then the husband (and probably racist as well as they are targeting the 1 non-Japanese person interacting with their daughter).