Any chance you have a save game I can test?
Looks like there are duplicate modifiers going on. One looking at it as a constructible and the other as an improvement.
Looks like same situation here.
Yeah, these are tough ones. Coming from a dev team, I've found that people are generally quicker to make the tweak but neglect the documentation. I'd say through their QA process, Firaxis was nerfing and buffing things all over the place to try to balance things out. In my personal opinion, these were more likely nerfed and text not updated rather than being implemented with wrong values. So I guess that goes against what I said in the description that this mod is unopinionated