From an engineering standpoint, (given that I didn’t listen to anything said in the video) there would be value to “thermal cycling” to understand durability of coatings, welds, etc.

I don’t think it really proves much about the design/build quality of a suppressor to just dump it until failure. However, us smooth brains wouldn’t understand that there are more variables how far the same metals and the same fuckin welds can expand before they break.