chips do increasingly come like that as intel gets better at binning, they don't want to leave money on the table and are creating more SKUs in order to mark up good chips like yours (this is why silicon lottery is no longer in business)
the reason your chip didn't come like that is because intel plays it very safe when it comes to stability and their margins for error are likely broader than yours, the stochastic nature of the failures means that the voltage margin between one crash for every 2 hours of stress test and one crash for every day of stress test can be hundreds of milivolts, but they're definitely working on it because pat doesn't want you getting free real estate
the reason your chip didn't come like that is because intel plays it very safe when it comes to stability and their margins for error are likely broader than yours, the stochastic nature of the failures means that the voltage margin between one crash for every 2 hours of stress test and one crash for every day of stress test can be hundreds of milivolts, but they're definitely working on it because pat doesn't want you getting free real estate