I think she was showing previously established behavior exhibited toward solids. The Jem'Hadar were trusted up to a point, but made addicted to the white. The Vorta were in positions of minor authority, but made to revere the Founders as gods. They were trusted solids, but still forced into servitude. Any other solids, they didn't really give a shit about, but tolerated if they were useful. Anger the Founders, and you're dead meat.