Can you time stamp the relevant part? Because I've heard the guy say "withstood the energy equivalent of all the power sources on earth running for 6 months" and "the power required to vaporize 48 billion people" lol. Both are still waaaaay too good.
Not to mention he is still making a bunch of super science assumptions on this thing that is covered in a ancient magic/tech Dyson sphere, complete with space rings doing god knows what. The movie clearly intended it to be "neutron star, wow!" Trying our hardest to make it anything but is needlessly convoluted given that we are filling in so many blanks and making so many assumptions. The only real dialogue we get to go off of is Sindri saying "yup it's a star. yer gonna be in it" lol