Yep, that's the gist of it. For example, here is level 6 disaster:
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Even at max disaster level, climate change only added 6% more storms, nothing to river flooding, and 3% droughts. Tiles affected are around 60 in a map that has huge coast stretches (a thousand tiles at least). Basically, nothing. I kinda expected a more doomsday scenario with the hyperreal setting, especially when reaching level 6-7.
Jesus, it's like they don't want to frustrate anyone even at the hardest setting. I understand them, though. With our own games we got lots of complaints of hard being "too hard". When we suggested lowering to normal, which was the intended design balance, they got offended and "showed" us how good they were at playing hard in other games...
Thank god for modding.