The NLH contract was drawn up with a BKK base in mind.
I have no idea whether it's competitive with other contracts drawn up in BKK (the airline would presumably say "Yes"!) but if the airline then tries to entice you onto the same deal by notionally recruiting you for a LGW base it's hardly surprising its not competitive in Euroland!
It doesn't matter whether you're paid in GBP, EUR or bananas, this is pure off-shoring and I hope the Norwegian Governments' appeal to the EU gets the whole matter clarified, and ultimately, knocked on the head. In addition, I trust the US DOT also continue to dig in...
By all means, sign up, but the subsequent pain is all self-inflicted.