darktable has a pretty steep learning curve and it introduces concepts from cinema (the scene referred workflow) that may be known to video editors and colorists, but that are surely alien even to seasoned still image editors and retouchers.

For anyone that wants to learn darktable I wholeheartedly recommended the forum at https://discuss.pixls.us/c/software/darktable/19

The darktable developers frequent this forum and it's an indispensable resource.