Author here, it's not that it's not possible, it's just annoying to do. Indeed, two-component hardwax oils are close to perfect (although the resulting polymer is not ideal), but having to do the precise pouring and mixing, and trying to smear that thick blend onto the wood, hundreds and hundreds of times, is not something I want to do.

I want to enjoy the process of making the wooden utensil as much as I want to see the end result, hence my excuse to play with random metallic driers and resins.