So, in my view it’s still early in the process of domesticating cannabis, compared to say, tomatoes and peppers.
Ruderalis I think is interesting genetically in the long run because it’s like the difference between determinate and indeterminate varieties. You could leverage that to get 2 harvests per season outdoors - assuming you have a nice indoor garden to get things started. Your autos could flower in the spring while the days are getting longer, and then put your photos out a bit later at midsummer.
Genetically though - a “Bruce Banner auto” will always be a cross between the original and some other plant that expressed ruderalis. And since it’s a recessive trait, generally it will need to be back crossed to the auto parent, not the original, in order to select for it and guarantee the seeds are autoflower. You might find a gem but most likely you are getting a diluted version of the real thing. In my view. But the 2 harvests part far outweighs the drawbacks.