Auditing a Project Against ISO 9241-210's Human-Centered Design Requirements

A colleague describes their last project: "We interviewed 6 users at the very start, then designed and built for two months without talking to anyone else, then ran one usability test right before launch and shipped regardless of what it found because we were out of time."

1. Walk through ISO 9241-210's five HCD requirements and identify which ones this project satisfied and which it violated.
2. What is the single change that would have the biggest impact on this project meeting HCD principles, without adding significant time?