Earlier quoted context omitted.
He answered questions on these topics: 1. Space Race 2. Internet Freedom 3. Favorite Basketball Player 4. Small-Business tax breaks 5. First Activity on Nov 7 6. Most Difficult Decision 7. Money in Politics 8. White House Beer Recipe 9. Jobs 10. Work/Life Balance Hard hitting stuff there
What would you have asked? Those are all pretty topical this particular election season. Any 10 questions seem inadequate for a president, no? Also, he brought up Afghanistan on his own in response to the 'hardest decision' question. That's not exactly a fluff answer.
Questions about the state of Iraq, Syria, Libya, Iran, Egypt, et al would have been more interesting. Characterizing sending more troops as a hard decision is not too surprising.