Well, the announcement came as Israel made a new offensive into northern Gaza, ethnically cleansing the area and slaughtering more journalists and doctors and after UNFIL made statements about being threatened by the IDF.
So it seems to be about showing support for these actions in a plausibly deniability kind of way.
When they slaughter civillians they always make these claims. Instead of calling out their lies, the allies of Israel instead put the burden of proof of innocence on the victims, and by the time the lie gets exposed fully, Israel moved on to have committed a dozen more massacres.