That's a fair point but honestly just run at a time when you can use sound like maybe on a week end. I'm not saying I disagree with your point, and that's their choice, but most games require sound anyway to be a legitimately verified run.
Honestly, I don't have much evidence, but it's really suspicious how they didn't use sound from the game. Honestly, I feel like it should be banned to just submit a run without the game sound, otherwise it's a higher chance a run will get spliced. Gotta say though, if it is spliced, the cuttings are clean, but this is my belief. If I'm misunderstanding something, just let me know. I felt as if something wasn't right about the run, and the music not even being the real background music makes it even more suspicious. I think this should be looked at. I don't have full real evidence yet, but something seems off.
Also, why was part of the screen cut off for a portion of the run? Dm me on discord so I can help you with that! It’s @cosmohateslife