'In The Pale Moonlight' - why doesn't Vreenak disclose his discovery immediately rather than waiting to get back to Romulus?

Such a big announcement has to be "done right". There's going to be no small amount of upheaval when people realise what's happened. Can't just dump it on subspace and let another official shape the narrative. The empire's response needs to be managed so the response isn't hasty but neither is the intel ignored. Deals in senate corridors need to be made to shore up his power base and shaft the pro-Fed factions.