Far down the road, he learns and understands, that his class doesn't matter, even though he fussed about it early in the story. If someone puts the effort in, anyone can do Moonlight Sculpting, just as he learned a plethora of skills from other classes. He puts in a lot more effort than pretty much any other player, so his adventures end up the most boring, and over the top (love the ghost pirate arc, looking forward to that).
Personally, I find the systems in this game to be fantastic. A proper use and implementation of charm stats, and interactions with characters. The only aspect that I have trouble understanding how it'd be done, is measuring "effort and intent" which is used in his crafting results. The headset reading the mind to generate a metric for time and level of focus on the craft? Can that be done? I don't think so, at least not that clearly. Could be focused on what to get for lunch, while crafting a dragon or something.