You soon realize that with almost every accident, it was a series of several things / decisions that all went wrong that resulted in the accident, and not just a single failure.
Kurt
Back in the day, I was involved in a number of aircraft accident investigations for the USAF. As you noted there can be a series of separate errors in any accident, design, maintenance or Pilot decisions are typical. Any one can usually be handled but if they line up, an unfortunate result occurs.
Pure speculation on my part but this could be one such case. First, the steep “abnormal” descent. Second possible runway misalignment. Third, distraction because of the first two and then failure to lower the gear or early retraction for a go around. Fourth, Going around after the plane touched down on the engines.
Again, pure speculation on my part but a different decision to go around earlier after starting the descent or go around after not being lined up on the correct runway, either of which would have broken the chain. Other possibilities are the Air Traffic Control delaying clearance to descend sooner resulting in the steep descent, malfunction of the gear mechanisms, other mechanical or software failures, or some unknown problem.
Fortunately, the “black boxes” have been recovered and will answer many questions.
https://www.ndtv.com/world-news/pak...air-traffic-teams-conduct-under-probe-2234429
Cheers