The Lucky Dragon Incident invovling Japanese fisherman and the US Military who were testing a Hydrogen Bomb in the South Pacific was what inspired the original "Gojira" film to get made. As far as Toho was concerned they were making any anti-nuclear film disguised as a giant monster movie since American occupation after World War II prevented the Japanese from saying anything outright about nuclear bombs during that time. The scene of Fisherman being attacked by Godzilla is a reference to that incident.
Which makes this film really messed up since they decided to recreate that scene as an homage to the original film but in doing so stripped it of all its context especally since the French are to blame for the creation of Godzilla in this movie.