As @guille2306 said, there are other programs that can do what you want. RapidPhotoDownloader is a very user-friendly one. I use Geeqie and a custom python-script to do my importing/sorting. There are different philosophies on what features to add to a program.
Most of DarkTables users are on Linux. On Linux and other UNIX-derivatives it is more common to tie several separate programs together instead of implementing all required features in one mega-program. On Mac and Windows, mega-programs are more common. I think that the DarkTable developers should avoid the temptation to add features in DarkTable that replicate other external programs.