You seem to harp on this every single time Rickover is brought up, but I'll make two points: I can't find evidence of that call anywhere but your single cited

You seem to harp on this every single time Rickover is brought up, but I'll make two points: I can't find evidence of that call anywhere but your single cited source, and that source does not cite it. He immediately completely overhauled procedures to prevent a reoccurrence of what they thought the most likely issue with the plant, if it did cause the sinking.