The striker protrudes on other Gens as well it’s just more noticeable with the Gen 5 strikers rounded tip. The firing pin can protrude until the slide is returning to battery and the trigger bar cruciform connects with the lug of the firing pin and then the firing pin block falls. Sorry to hear about the malfunctions. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.