Your statement makes it sound like your suggesting it is fair as it is right now. Which it is not.
In this case no. I wouldn’t say its quite a trick at all. it’s more of a matter of the devs making an proactive action, which seems to be something the devs do not want to do, will not do, or can not do, at this time for some reason. but this is what should be done as stated in this other post
If they add that in, then they can add in a way to allow someone to get coin for killing things and for every other “profession” or activity in the game