That's only direct impacts and conveniently glosses over the fact that the more expensive infrastructure that is mentioned also protects people better.
More generally though, the most important of climate change isn't going to be the direct damage of changing weather, but the indirect damage from changing climate a sit makes currently heavily populated areas unliveable (major coastal population centres, for example) and significantly disrupts current food production methods and chains (growing crops in the Great Plains/Prairies of North America, for example).
The latter is what
@Ekkie Thump was talking about, and the article isn't about that
at all. Bit of an understatement on your end in that regard.