A lot of early work into physics seemed like dumb questions at the time. When taken to the extreme “Do heavy objects fall faster?” tells you quite a bit about how the world works. And critically people intuited the wrong answers to many such questions before careful experimentation.
Obviously we have the benefit of hindsight, but “do heavy objects fall faster” doesn’t seem like a stupid question to me in the same way that “do chimpanzees like crystals” does.
I think we can call them both stupid in they are malformed.
Let go of a feather and brick on the ISS gets a different result than doing so on top of Mount Everest. Similarly understanding chimpanzees behavior is a deeper question here noticing some chimps find some crystals interesting in some situations and moving on.