I think the points going a bit astray here. France and England clearly see New Zealand as their challenge, and more or less, depending on the era and squad at the time, are confident that they are on Australia/South Africas level, thus you'll never truly see them or their fans rejoicing over wins in the 6 Nations over specific nations, unless it's leading to the Grand Slam or was something special. Even when they shouldn't be holding their own.....they sometimes do (2007-2011 World Cup Finals for instance were both far closer than they had any right to be).
Ireland/Wales seemingly still see England as their New Zealand, forget about seeing themselves on the levels of Australia or South Africa, though I think Ireland are starting to move forward in general and this game was just more about getting over a pretty shitty tournament for them, given they got wins over all 3 last year, and now England too.
Bring on the Lions series I say.