No luck on steam keys auto-sending unless you purchase it again. I tested it out for me and it worked! But that's not really a solution, so I'm gonna just send out keys manually when I get time.
It's nothing sinister, I had no idea this was a problem until now. Looking into it. Mean while, in the purchase page find "request key" and see if that works.
The project itself is done, although the extras I've wanted to add are taking longer due to life being unpredictable. There is still much I'd love to implement. I update frequently at my Twitter. @xpisigmaart