If the latch has released more than once, it is seriously worn, or have a broken spring or 2.
1. you can't fall out if you're wearing your 3 point harness. I've driven a lot of vehicles with no doors.
2. Repro latches are mostly junk. They don't use the original cam and tooth design, but are made to latch on over center only. That makes door adjustment difficult and will pop open if they don't quite make full over center.
3. Good rubber keeps the door rattling and putting stress on the old style latches.
If you can afford them, bear claws are great.
I've bought new (junk) latches, taken out the springs and the lever (the only other useful part in the latch) thrown the rest of the new ones away and rebuilt the originals if the teeth on the cam aren't worn.
Or buy up used latches, take them apart, clean and carefully inspect and decide if they are good or more pieces for for another rebuild.
They do work well if nothing is broken.
