Would you kindly post a link to the original?
I'm not expert enough about waves/storms/sea-state to pronounce safety equals those sea-foam green regions, since big waves can come from sources other than typhoons.
However, staying out of the way of typhoons, until some truly brave souls pioneer seasteads in rough, open water sounds like more my personal speed. Or finding/licensing/leasing a shallow-enough place that a conventional breakwater could be built, without breaking the bank.
I'm not saying that seasteads cannot be designed to take big waves; I'm saying that big-wave-robust seastead designs will require large, carefully engineered structures, and we can't just "wing it" with fancy architectural renderings.