^- That's needed to gain levels.
You can lose levels by having mistakes as far as that's concerned. We've all seen skaters who seem to leave out sections of footwork forwhatever reason in their programs (maybe they are behind the music, they may be fatigued, sometimes they fall like Wagner at worlds and have to rush to stay with the music).
I do think the turns and loop mistakes require some knowledge of skating cause some people simply cannot spot when a skater goes onto a flat or switches edges therefor turning a counter into a three turn and what-not.
But those of us who are familiar with these things are doing the BEST WE CAN to try to help others understand.