“tactically speaking”
Now that they are aware of ‘The Scorpion’ weapon, they can plan accordingly how best to safely deploy the dragons. I wonder though how necessary this knowledge will be? Was this the bulk of the Lannister army? And if so, The Unsullied should be able to simply stroll into Kings Landing...
Dracarys destroyed it after being hit by the second volley. That and a lot of Lannister troops with it.