I forgot to answer this. The lesson is going to change depending on what the focus is, cars vs bottles, vs underwear. The exercise is a thinking exercise to get people to beyond "What is best" by understanding intent of use that we have in mind. Back to the bottles example, The bottle that you choose may vary depending on your intended use. In terms of using it as a weapon, non of the bottles were designed as a weapon but one may make a better weapon than the others to serve your intended use. But in order to pick the right one, you not only have to understand your intended use, but you also have to have some understanding about the bottle's make up. A bottle with a long neck may at first seem like the best use, but if it a thin bottle then it may not be the best use for you.
Picking what is right for you in this scenario would require a deeper understanding of the bottle, beyond the intended use that you were told. In TMA we are often taught a technique from a defensive perspective which makes the technique extremely difficult to use as an attack. But a deeper understanding of that same technique make it possible to use is as an easy to do attack.
Some people like the short sayings while others don't like to think and figure it out. In my religion I often wish I would just get the short answer instead of being put through "life's tests, ups and downs, and hardships." before learning the answer. But then I think of how much I now know because of life's test, ups and downs, and hardships. Even though I went through all of that for a simple answer. The journey has made me a stronger and sometimes bitter person than what I would have been if I was just given the answer.
Sometimes traveling the path of gaining the answer is just as important or more important than just having a simple straight forward answer. Based on human behavior, I would say that it's natural for use to resist the short simple answer. I know when I give a short simple answer here, I end up having to do a lot of explaining, making videos, and breaking things down, just to explain something that I thought was a short answer.
I'm not the only that goes through this. Look what has become of short statement that was posted by the OP and look at all that is going through it because Jobo didn't simply say. "I don't like it". I'm not putting you on the spot. I do the same from time to time. I just think it's simple human nature. Besides. If we always accepted a short answer then no one would actually think.