It hasn't worked that way for me. In fact, it only disengages when the cable is knocked away left from the computer. When the cable is knocked right, behind the computer, it doesn't let go at all. You could probably pull it this way all day. At least with the old cable it came out if the cable was knocked left, right, up, and down. The new one only comes out with a tug to the left. I'm sure there are some lever forces acting here too.
I assume you didn't design the new cable so please don't take offense.
True point actually. And no offence taken.