Saleen had not been pulling a simple threat back there. A seed of fear had been planted into the mind of the goddess's follower. Thundering Sound skills were available only to Saleen, but Nailisi had a degree of mastering of lighting skills as well.
If Nailisi faced that follower of the goddess, she would easily be able to expose that follower simply by using lightning powers, enabling Nailisi to kill said follower in a single shot.
As for the other 11, Saleen deemed it unwise to make a move against them before everyone else.
The heroic spirits in the cemetery launched their final suicidal attack. They sang a requiem, which was what their friends and families all those years ago had sung to them when the cemetery was built.
