Gotta also look at the flipside. The item being sold is a landscape- which is fine on it’s own. The complaints stem either from the purchaser not understanding the parameters of the material, or from bonus content/content outside of Maximum-Dev’s control. If the ‘background meshes’ were not present, a significant portion of the likely reason that the refund was issued would evaporate.
Had Maximum-Dev simply not included anything but the bare minimum, I’d expect that this customer in particular would not be getting a refund- because it can be demonstrated that the is only a misunderstanding. At this point, removing features/content won’t be considered a fix, so who knows what Maximum-Dev would have to do in order to not have the refund issued.
Or, that’s how I’d expect the outcome to be, coming from somebody who isn’t involved with the MP at all. Things like this are why I’m not involved with MP at all.