I can see the point that other things make more sense... but like James May's Toy Stories, some of the things done could very well be done just because "it's gonna be effin' COOL". It's only after the spectacular, but surprisingly non-fatal, failures that the fen involved will come to their senses.
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"You know how parents tell you everything's going to fine, but you know they're lying to make you feel better? Everything's going to be fine." - The Doctor
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"You know how parents tell you everything's going to fine, but you know they're lying to make you feel better? Everything's going to be fine." - The Doctor