I love absolutes as much as anybody, BUT on an AR you cannot put the rifle on safe if the hammer isn't cocked. So, you can't put an AR that has a type 1 malfunction on safe. You also couldn't put it on safe if it fails to extract a spent casing from the chamber.
True, but...
If the selector won't go into "safe" then the rifle shouldn't go bang...but as your finger comes off the trigger you still should attempt to put the rifle on safe.