I can confirm that it does indeed show the full SMART information on the drives IN RAID (0 or 1) BUT it doesnt show all other drives connected to the same controller. Also under the SMART tab in the programm no SMART information for the other drives are displayed.
Also with the last version of RST i noticed my bootdrive (Samsung 830) showing up a whooping 3 times. Didnt bother me as much then, but not showing up at all is annoying.
I've got 2x WD30EZRX in Raid1 which show up and 1x Samsung 830 256GB and 1x WD20EADS which both don't show up since 12.6 but they do in CrystalDiskInfo.