I notice in the video the museum person promotes the trendy idea that herbivorous dinosaurs wouldn’t be aggressive. This same silly notion was in the original Jurassic Park movie. Must be a new-age vegetarian-is-good thing. Well, both rhinos and hippos are herbivores and both those species have wicked tempers if you enter their domain.
You're right; it is a bit of new-age BS. Anyway, any creature that large would definately be a probable hazzard.