At least Sean Longstaff has experience of handling this sort of defeat: he's lost 4-0 and 4-1 at the Emirates for Newcastle. You can either view that as the record of a loser or assume it has instilled resilience, and that might go to the heart of the argument.
Tony Currie was a symbol of the post-Revie transformation of Leeds United from a clinical winning machine to something more relaxed, and much less effective. Nicer hair, taller floodlights, no more trophies. But what Don Revie had drilled into his players, they now drilled into Tony Currie.
The least likely result from this game was Leeds beating Arsenal, and it didn't happen. But there was a really good game of football had here and it would be a shame to waste it.