The Kick Sauber driver was nine-tenths slower in the middle sector and still came home fifth. The question isn't how Piastri won — it's how Hulkenberg stayed in the conversation.
Oscar Piastri was 0.897 seconds faster than Nico Hulkenberg through Sector 2. Piastri finished first. Hulkenberg finished fifth.
That's not how gaps are supposed to work.