In this particular case, the answer may also have been pushed in the pro-Hamas direction if the questions were answered in the order they were reported: first, questions about Palestinian suffering caused by Israel's response; then questions about whether Palestine would eventually be victorious; and only then about whether they support Hamas.

If they asked it in the reporting order, you could hardly choose a better priming for a pro-Hamas response. (And even then it's notable that Gazans were a lot less pro-Hamas than people in the West Bank, which says a lot about what it's like to actually live under Hamas rule.)