The copy of Dimitri’s Sensitivity Report from ShinRa includes the very vague details of Sephiroth’s new son. It also highly emphasises either not discussing it with him, or being mindful of what the situation is before talking about it. The article also goes on to warn the reader that the immediate family may also be sensitive to the event.
The article then goes onto other issues like the four dragons now captured and being held in a warehouse near the docks, and to “not engage them under any circumstances, ever”.