Why destroy Laketown's bridge?

[Rikae]

Originally Posted by STW

There is not one iota of proof offered to support that claim. Not one.

We have a dragon who was apparently foiled in his preferred attack because of the lack of a bridge - implying his preference was to attack from land, and he could not do so without the bridge - ergo, he couldn't land in Laketown. I would say an appeal to the text of this sort comes closer to "proof" (while it is not proof, and I doubt either side will arrive at any such thing) than speculation about dock space as a dragon-landing-strip does.