"Most striker fired pistols have a firing pin block."
If you mean "most" based on a sheer number count, that is not true. Only the more modern striker pistols have a firing pin block; guns like the Colt 1908 .25 caliber don't, nor does the Browning 1910/1922 or thousands of similar pistols made all over the world for over a century. And only the most modern hammer type pistols have any kind of a firing pin or hammer block The original 1911 does not, nor do hundreds of similar designs, as well as Lugers, etc.
So those who insist on carrying "one up the pipe" and believe the gun designers protect them may well be under an illusion.
Jim