There's a lot about explosives and explosives removal that is not obvious. Even more so because those techniques are classified both to keep other weapon designers from designing around your diffusal methods, but also to keep from elevating the "game" as it were of the public.
What method would you have used in your common sense guess? The old cut the red wire method? Chat gpt says "call the police and leave the area" as the most effective bomb diffusal method. The experts then "diffuse the bomb" as the next step. So there you go.
There's also a ton of stuff you don't learn until years later like how some old explosives cause salt crystals to form that mess everything up more. https://www.bbc.com/future/article/20150922-these-nazi-bombs...
What method would you have used in your common sense guess? The old cut the red wire method? Chat gpt says "call the police and leave the area" as the most effective bomb diffusal method. The experts then "diffuse the bomb" as the next step. So there you go.