Kea Hi, It’s about the rivalry between String Theorists and people who work on “alternatives”, the main one being LQG. Of course it is just humour and in reality there are some people like yourself who have a different viewpoint from that of the protagonists here.
By the way the twins do not represent specific people. They are charactures who say a mixture of things that different people have said. Perhaps that leads to a confusing image.
It is very quick and easy to make these animations with xtranormal. I am sure someone could do it better.