Fwiw, I've built two lugged mtb forks (same type of construction as yours) they are silver brazed and one has 4 yrs and 20k miles and the other is newer, only two years old with about 5k on it. Both are regularly ridden on rocky singletrack and the one on my bike (the older fork) is jumped quite often....they are both still going strong.
I'm saying all that to make the point that a properly brazed fork, regardless of how many tricks are done on it, won't fail the way yours did. Blades will bend, dropouts break, the crown will crack, etc- but you won't pull the steerer out of the crown.