How serious a person is your son? Sounds like he knows what he prefers. Please listen to your son.
Most women like to see how we have progressed. Men want a finished product and if their name is associated with it, they want it to be something no one would tease them about. If you want that first incomplete project like it is, then save it and share with his child later on as you teach the child to quilt. Meanwhile, make something new, from you, for the nursery.