A stable approach and a landing in the TDZ are two not necessarily mutual things. The approach looked great to me, given it was a circle. Plenty of nose-up the whole way in, no drastic pitch or roll yugs.
The landing: had they gone down another 2 feet it would have been perfect, right on the big white squares. Unfortunately, they overflared just a tad and the rest is history.
If there's any doubt, there's no doubt. Go around!