Aside from the magic dying, which I agree with, another commenter in this thread says there could be false positives (whether from Indians or AI doesn't matter) you'd have to 1) notice by studying your bill later and 2) resolve by requesting refunds online.

Knowing this, it was over before it ever started. Beyond the masses of people already having aversion to the oddness of how it worked and likely never wanting to try it, these and others would swear off the store forever the first time they ever got charged for something they didn't take. No one wants to monitor and fix erroneous purchase errors.