The point is that if the local environment is used to dealing with X amount of water every 30 days, the life and environment will be adapted to the flood zone. If X amount of water comes once in 10,000 years, this is not the case.
The point is that we have a group of humans that are incentivized to live in an area that isn't safe to live, full stop.
Said with tongue firmly planted in cheek:
"The Himalayas are the highest, youngest, and most unstable mountain system on Earth. Let's terraform these bastards to extract energy and incentivise people to live there. They can build these giant, terribly unsafe, concrete buildings right on the bank of a river fed by a an unstable glacier. Let's also have one way in and one way out! The mountains are too steep for meaningful egress upward, so rock crawl your way out there for the bi-seasonal melt floods!!!!"
The point is that we have a group of humans that are incentivized to live in an area that isn't safe to live, full stop.
Said with tongue firmly planted in cheek:
"The Himalayas are the highest, youngest, and most unstable mountain system on Earth. Let's terraform these bastards to extract energy and incentivise people to live there. They can build these giant, terribly unsafe, concrete buildings right on the bank of a river fed by a an unstable glacier. Let's also have one way in and one way out! The mountains are too steep for meaningful egress upward, so rock crawl your way out there for the bi-seasonal melt floods!!!!"