You're right, clubbing up is not the solution for shots that fall short due to very poor contact, IMO. I've been arguing this for a long time and there's just no getting through to those who believe not pulling enough club is always the root cause. They look at the numbers without giving it very much (any) critical thought and absolutely refuse to consider the logic from the opposing view. They hold on to what they've believed for decades and that's that.I’m a 20 and my most common miss is short by a long shot. My miss is catching the ball fat which is responsible for me missing the green short quite a bit. I don’t think clubbing up would really help me fix this as my chunks are pretty bad.
No doubt, many golfers do not know their distances. But there are many of us who track our stats and adjust depending on wind, elevation, lie, etc. I can't speak for many others, but I pull the club that will give me the distance with "decent", "ok" or "typical" contact, not the distance from a pure strike and certainly not the club that will give me the distance if duffed.
The higher percentage of shots that fall short are not always a result of failing to pull the right club. Since there's a 3 out of 4 chance of missing a green, I'm going to play the miss that will avoid penalties. If there's water in front of the green, I'm pulling more club. If there are woods directly behind the green, I'm ok with a miss short.
It's absolutely no different than any other risk/reward scenario. Yet, because the pros do something a certain way ("GIR are king"), that stat or method should apply to those of us who fail to break 90.