Do we really need to threads on the subject on PPrune? - especially when the other one has got 3 pages of comments already?
The video if anything is an excellent demostration of a crosswind landing. The extent of flex of the wings does NOT signify a "hard" landing.
And do the guy who made the comment about Queens. If you can move a control in the cockpit, then the surface can take it. Remember that the movement of a control goes to a computer first. Don't you think the software developers have already written some code that limits the rate of movement of the control surface at certain operational conditions?
In modern FBW a/c, you can be as viscious as you like with the controls. This doesn't mean that the surface itself is moving at that viscious rate.