Sorry.
There's no over excitement or even dread about this in Wales. I think ten years of relative stability and success has soothed the national psyche, which is probably Gatland's greatest achievement. I mean, the process started with the 2005 6N Grand Slam but it was brittle, then, and fell apart quickly.
Nobody thinks that Wales are the best team in the world, obviously, and nobody expects them to win; on the other hand, if everything goes even moderately well in the next few weeks, then Wales have as good a chance as anyone else (apart from the All Blacks). There's a quiet confidence in the Principality with no unreasonable or distorted expectations: that's my impression, anyway.
The 2011 Semi-final is the great traumatic event of the Gatland Years, but it was absorbed pretty well, all things considered; that team went onto some very decent NH success. Possibly the most impressive thing is the way that in the late years Gatland has broken out of Warrenball and broken in a fresh stream of players to replace some big names, and consistently created new, cohesive teams out of it.