How would intel have this data?
Intel has both their own CPU telemetry collection through windows drivers and I am sure Microsoft is letting them in on all the OS crashes caused by Intel hardware.
You think they validate every CPU at unlimited power with every piece of software under the Sun?
If they aren't, they should be if that's how they sell them.
Apparently, there's an instability in a single-digit percentage of Intel CPUs which leads to incorrect program execution and / or outright crashes.
Whichever way you look at it Intel is responsible because they are selling unlocked chips and endorsing overclocking with their K models -- motherboard manufacturers are just giving users the means to do what Intel allows and their only responsibility is to provide sensible defaults.
Those defaults are in turn driven by comparative benchmarking performed by so many hardware reviewers who leave everything at default settings instead of locking every motherboard and CPU they test to the same sensible settings. They are the ones who enabled motherboard makers to compete for benchmark scores using increasingly more insane default BIOS settings.
Moreover, the majority of users, even those who build their own PCs, almost never enter BIOS and touch any of the default settings. Because why would they? Reviewers tested their review samples at default settings so it must work for them too, right? We all know that's now how any of this works.
Finally, software developers can only do so much if the CPU itself misbehaves.