I prefer to only import the RAW files for images that I take with my camera, although I shoot using the RAW + JPEG settings. It would be a nice feature in Lightroom (cloud version) to add a toggle that would only allow the import of the RAW files (ignoring the JPEGs).
Right now the only approach is to add files via browse and sort the files by kind. Which works, but it would be nice if there was a more elegant solution.