It's not like the scientific community isn't divided on the release of the wastewater, just that the release of tritium is probably not the biggest concern.
https://www.npr.org/2023/08/24/1195419846/fukushima-radioactive-water-japan
There's still concern about the custom-designed ALPS system and the trace contaminants it may leave, which WILL bioaccumulate. Plus, Tepco hasn't really been known for, y'know, prioritizing health and safety over profit.