There is a reason that in showing why your definition is bad I appeal to completely normal types of play, and you have to invent crazy shit like fictional people who play ten hours per day running time walking dungeons but never set foot in M+2, or appealing to pacifist herb farming as the knock-down example that renders the definition useless as though there are 100,000 players doing pacifist herb farming leveling.
This is exactly why your designation is meaningless. It is just you deciding who is or is not casual first and then painting the definition around them to fit whatever argument you are making at the moment. Everyone in each of my categories has things in common. They have playstyles and interests in common. Nobody in your categories has any of that. It would be like inventing a definition of "engineer' that excludes people who make software but includes people who build hamburgers at a fast food restaurant. What use is that category? There is no use. You just want to play definition games because being difficult on a forum is your hobby.