Many things are not simple by that definition or any other, and it is not about specificity. Some problems are inherently complex, some are not. It is often true that hard problems are hard because they are complicated but some things are just hard even if they are simple.

You are basically promoting the idea that I am rejecting, that because people find things difficult and have a lot of complicated reactions to it, that means the underlying problem is itself must be complex. I don't believe that is either true or useful, and argue that it can often make the problems themselves worse by muddying the water.

Some problems are complicated but relatively easy. In this case, if you just find "the right trick" you can solve it without much difficultly. We do people a disservice when we pretend that simple-but-hard problems are actually complicated-but-easy. This is something that is often done, for commercial gain, in industries like weight loss and smoking cessation. At core, I am arguing that this is a bad thing.

At any rate, we've probably reached diminishing returns here.