As hobbies go, bushcrafting is a lot cheaper than casinos, fast cars, big bass boats, and......
Agree and I am not against enjoying a few hours of relaxing activities. And if you use that knife multiple times and make many spoons and bowls as gifts ...etc. that's OK. If it is a loooong time passion and you still use it , very good for you. Problem is only when someone buys something attractive from a webpage, use it once and buries it in a drawer.
Also, carrying this knife needs more caution than a straight knife.
I just use my time to play in the woods with my toys. I can see the appeal of having a hook knife just to whittle away an hour (pun intended) making a spoon in the woods on such a day.
I honestly don't know. Do you make anything with it other than spoons. Maybe, if multiple uses are found, my case is folded.