I've read Skunk Works and had a p***ing interest in planes, but have not heard of this one before. https://newatlas.com/military/goblin-ultra-compact-fighter-plane/
Well the article says "It proved to be very stable and easy to fly after release with surprisingly good performance for such a minute aircraft." Problem was the return!
Just remember, if the a-bombs were going to be used, the return trip was not going to be necessary. Maybe they overthought the whole idea. After all, it was MAD, Mutually ***ured Destruction, so the pilots might just as well have had smaller nukes for a secondary purpose…