I don't think this is accurate. The passenger who rented the car is Japanese/Singaporean and fluent in Japanese. So they understood the language.
From watching a longer clip. The Japanese/Singaporean went to use the bathroom. The Italian got into the driver seat to take pictures. Singaporean/Japanese returned. Italian thought they should move the car to a different parking spot, Singapore/Japanese told them to move it even though the Italian didn't want to.
Really foolish. I hope the people hit are ok. I'm a fan of the Japanese/Singaporean streamer, but stupid mistake. She always seems like a really kind person.
I never heard of the Italian before