In a perfect world, conversions are unnecessary because adventures are intentionally designed for the game they are supposed to be used with. I think you must inevitably and necessarily lose something in the conversion, and a well designed thing should be experienced in the system it was made for. This is doubly true in a project like Dolemwood because the creator actively rebuilt the system to serve the project.
All that said, it isn’t "wrong" to convert things. But why not play it as the creator intended?