No-one is, I think, denying that using clipless pedals is a learned function. But like everything, practise makes perfect.
People have been advised so many times that when they set up their pedals:
1. Lean the bike up against a wall or between a door frame and clip in/clip out 50 or more times so you get the routine right.
2. Ease off the release tension on Shimano pedals and whatever others have that adjustment until the routine is learned.
3. Unclip early.