The Wales stuff seems like it would have more appeal in the UK. I'll wait until the UK fans get to join in, but it seems tailored to English people mocking the Welsh (since Americans generally don't think about Wales much at all). I'd think they'd leave that in. Plus, it was a nice bit of humor (actually, it starts with the guy leaving the hospital. It was good for a chuckle, although it was weird it's simultaneously happening with serious dialog).
As for not featuring the title. I think as long as the writing of the episode itself is about the same, the more production-oriented stuff can move closer to American in tone. Just imho, but those seem like minor concessions to those funding the show.
I've been to wales and it's nice so I dont't understand the english picking on them either way it's nice to see a different part of england other than london. and is'nt king arthur from wales?