They are not hurt just not on the 40-man. With next year in doubt on when it will start placing either on the 40-man wouldn't be a wise decision. They wouldn't be able to play in the minors if they are on the 40-man as they are part of the MLB CBA then. If they are not on the 40-man then they are part of the MiLB CBA which would allow them to play in the minors.
Other than they are both probably not ready yet to face MLB pitching the probable lockout is why they are not on the 40-man and being promoted. Burke probably has a better case for being on the team but the same lockout problem applies to him.