not Joyce DiDonato, me! I don't know if she nags, but I definitely do. Ms. DiDonato says "process"-- "don't go for the result". Our technique uses different words: action, objective, or need (per Kim Stanley). I've been using the word need because I think it's more powerful, and every action should be as powerful as possible.
Going for the result results in listening to yourself. Once you do that, you're not present, you've left your action, and you've effectively ruined the necessary progression of the series of actions provided by the writer that tell the story. You are responsible for the dramatic actions of the story, not a narrative version of it.
Learning and practicing technique avoids the accident of a good moment or scene performance. Technique frees the performer; it doesn't constrain the performer as so many actors I meet seem to think.