My only question would be why didn't he shut down the donks, once he had landed and while the nose was still capable of being held off the runway? I know it's still going to require inspections, testing etc but reducing the shock-loading on the engines and damage to the prop tips is possible, even if the nose landing is not preventable.
I know I'm 'armchair experting' and there may be very good reasons for not doing so. I'm just interested what they might be for my own, continuing, education.