I suspect the final NTSB report may not shed much more light on this accident but perhaps Leslie Gropp the pilot may be prepared to share his reflections on the incident once any legal stuff has been settled
I'd be interested to know how much experience he's had of operating from high elevation airfields. My impression was that he was local so maybe quite a lot.
I've only taken off from high elevation fields (two up in 172s in Arizona) a couple of times and they were lower than this one but I do remember the apparently excessive length of take off roll so that may not have been such an obvious warning as it seems.
Whatever really caused this accident speculating about it does provide useful reminders for us all and the outcome seems to have been almost as fortunate as in the G-ARCC TriPacer accident at Popham in 2006 .