If you're having issues with blades closing on liner locks, you either have a crappy example or are doing something seriously wrong with your knife.
Neither. Apparently, you somehow got the idea that I was talking about the knife closing accidentally. I wasn't.
I use a knife most days. My other hand might be occupied, I might have leather gloves on, the light might be poor, my hands may be half-frozen or bloody.
I can put a half-frozen, gloved hand, in the dark, on a lock back or (better yet) an Axis lock and never have my thumb/finger, ligaments or blood vessels in the path of the closing blade. Not possible with a liner lock.