Agreed, the timing sucks for anglers, but I disagree that any other time would have been fine.
The spring/summer freshet window is out. I doubt they would be permitted to do it during the winter/spring with eggs and alevin in the gravel. November, Dec, Jan are the heaviest rainfall months of the year, with November being the heaviest. And time is of the essence to get this done before the fall/winter rains, esp since they couldn’t do it in 2023 due to pink salmon spawning.
Yeah, the timing sucks, but all things considered, and in the interest of public safety, I think it’s the best available option.
Edit: correct year from 2022 to 2023