We are convinced that Jonas has the ability to acquire wisdom.
Though Jonas had only become a Five the year that they acquired Lily and learned her name, he remembered the excitement, the conversations at home, wondering about her: how she would look, who she would be, how she would fit into their established family unit.
Jonas has not yet acquired that.
A sail perhaps on ocean, next time, for Jonas had a memory of ocean, now, and knew what it was; he knew that there were sailboats there, too, in memories yet to be acquired.
I think that they can, and that they will acquire some wisdom.