Obviously there can be no resolution to this question until there is an agreement on what it means to choke. To me simply getting beat doesn't mean you've choked. Getting run down by a better runner from 20 meters back doesn't mean you've choked.
Running with a strategy or tactics that don't lead to success isn't always a choke. A team could be said to choke if the coach unnecessarily implements a line-up/strategy that leads to sub-par performances, but I wouldn't blame the athletes. If the coach knows what they've done before isn't likely to lead to success, but sees the possibility of a win if they implement a new strategy that fails, I wouldn't consider that a choke.
I wouldn't even call this a choke:
https://www.youtube.com/watch?v=vWa9iYYPYF4v
That's just stupidity.
There are several high profile situations in NCAA XC Championships where favorites finish way back in the field or don't finish at all that I would casually call choking. However, in light of athletes who have had major breakdowns and even committed suicide, it doesn't seem helpful for observers to refer to any performance as a choke. That's something best left to the coach/athlete/sports psychologist to determine and work through if necessary.