So the guy forks darktable for windows, calls it something else. Then when the project reaches a level of maturity the original devs approve of, they take his work back into darktable, produce their own windows port under their 'brand' and his project potentially dies because it doesn't carry the same weight?
I got the vibe from some of the comments that "one guy working on a windows port isn't enough, we don't want to help support it so we're going to discourage any 'one man bands' until a team appears from nowhere to do all the work" is the common view, which I sort of understand that they don't want to have to provide end user support to a platform they themselves don't use, but that attitude might ultimately go against the project.