User blog comment:Thailog/Ep. 202 "Earthlings" discussion/@comment-5046454-20120506034329/@comment-4454131-20120506041541

1. he's always been am important character.

2. He may not be aging visibly but he's still aging. It's in the episode.

3. It happens in the comics

4. They've had this planned way longer than we've had time do voice our opinions about it. They do whatever they want with their characters.