I mean, a thirty knot X wind for an A340, C'Mon!!!
Can't say for sure for the -600, but the A340-300 demonstrated crosswind component in the limitations section is 27 knots. I suppose you can exceed it at your leisure but you've entered into to test-pilot territory, and my guess is that management isn't going to be too pleased if you stuff it up.
You might also want to give a wee bit of consideration to things like the relative size and amount of inertia of an A340-600 versus a DC-9. They're not exactly the same, now are they? Not saying these guys did it right, or wrong, but I think it's a bit early to be slamming their airmanship.
ELAC