If it's true, they're deflecting and missing the point of the criticism.

I am under the impression that tritium discharge isn't a huge deal. But that's not what the Fukushima water problem is about.

Chinese media have been reporting for months if not years that TEPCO and Japanese authorities don't even know what other radioisotopes are in the Fukushima waste water and at which concentrations. The filters used aren't appropriate and only certain isotopes are even tested for.