(My copy of my company's) Performance Manual for the B767-300 covers Willit Run's worry about single engine approach and landing climb: in short, Willit, generally not a problem. Nor are there any particular handling traps landing overweight on one (It says here....!)
The captain on the day had to make the call: consider incurring a (IMVHO) miniscule added risk by taking time to dump fuel from the centre tank (leaving about 36 tonne undumpable) verses the possibly (who knows how big a...) risk of problems at the end of the rollout, following an overweight landing.
All the B767s I fly are 180 ETOPS qualified, and this influences how I view problems like this one. Results may vary
