I wish movies would respect their audience. They tend to dumb things down. It would be fun to see someone really go after it, and let the public catch up. Here's what I think when I see this:

Interesting to see the edges of a black hole. Nothing gets more powerful than that. Why build bigger and bigger colliders if you can get accurate data with something on a cosmic scale.

Interesting to see what particles of spacetime do there. A string is a particle with one dimension. Why is it constricted like that. And what applications exist in manipulating that constricted degree of freedom.

If we are imaging black holes, and manipulating instruments in the plasma of stars, and there's no consequences, at what point is everything out there a refraction pattern controlled by our actions. A star or a galaxy leaves our ability to view it. We still know about it through black hole imaging. No way nature could do that. We manipulate that distant celestial object to rely on our ability to image a black hole, and then suddenly stop. What happens?