The elbow and the legend simply would not mix.
Imagine the big beast elegant escape having to slow down into the elbow then hop over, then come to almost a complete stop as he has to quickly change direction and start running again.
A small horse like Tiger Roll is taking at least 15 lengths a time from the beast so twice at the elbow would mean 30 lengths plus given to a nipper smaller horse.
A big beast is never going to show his best in the national these days.
It’s all irrelevant anyway as the legend will not go to the grand national next season.