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well maybe I can call it with something else instead of a design weakness but if one of the claim is hurricane protection than ground stabilization is one of the features must be they rely on.

Again, it is a floating house so it is not expected to be stable. And its floating feature is actually one of the reasons why it can withstand hurricane because it won't be fighting too much against the strength of the calamity.

Anyway, you have your own opinion.