This is so obvious - what are the downsides? I mean, it could be easily guessable that the bottlecap is valuable, ruining the surprise. Ultimately they didn't

This is so obvious - what are the downsides? I mean, it could be easily guessable that the bottlecap is valuable, ruining the surprise. Ultimately they didn't test. Or confirm the vendor's test. It's all Pepsi's fault for a mission critical bug.