What is more is more important than just moving out of fire, is minimizing that movement while simultaniously putting yourself in the best position to prevent further movement.

I remember Thorim Hardmode demanded this, General Vezax demanded it, and many others.  DPS isn't just about hitting your buttons in the right order, or keeping your dots rolling perfectly, but maximizing your total abilities used thus raising your effective damage overall.

This video covered stuff I considered common sense, and I think any raider just starting out, or experienced should see videos like this.  If for no other reason than to affirm their practices are wise.