Yes that's true: Many 1911s (such as Dan Wessons, I think) have no Firing Pin Block...And some do.
I believe Kimbers have the Swartz style FPB, and Colt Series 80s and other 1911 makes that copy that style have an FPB, too.
I am not sure what point you are making.
I don't carry a 1911, but own several and enjoy shooting them.
The lack of an FPB in the Shadow Tac II was good information for me to get from the forum, but probably not a decisive factor in whether to carry that model. I'm most concerned with the grip/checkering, sights, trigger, capacity and ease of carry (not partial to accessory rails for EDC).
Lots of folks think the FPB was invented by lawyers trying to fix a liability problem that doesn't really exist.
My view is everyone should know his own gun and it is totally the individual's responsibility to avoid any AD, firing pin block or not.
Just my $.02.