I knew what you meant.
The series 70 drop fail requires you to drop it on the muzzle. It shoots the ground. I also think it's a reasonably low probability of happening. Otherwise, it's pretty safe at normal duty spring rates and trigger geometries. My competition guns are more questionable.
The P320 should theoretically should be better, however the striker safety failure rate seems to be pretty high (no more 320 advantage over 1911). The slide to FCU play seems to be enough to allow the sear to release the striker in some cases, which inherently also skips the secondary notch. All of the analogous components in a 1911 are in the frame, with essentially no play.
Side note: You can basically make a series 70 gun drop safe by using a titanium firing pin and an 2x extra power return spring. This is how Springfield made CA legal 1911s. You'll need to run a fairly heavy (23# or so) mainspring to make it work.
I'm not sure you can actually buy a Series 80 anymore for what it's worth.