Dirk Hanss wrote:
That is totally true - for beginners.
This is totally true all the time no matter how long you have practiced Aikido.
If you were not told by your sensei to instruct or not ask by your nage or uke for help, then your job as nage is to practice your technique and as uke is to practice your fall or roll. Your sensei is responsible for determination if a technique is right or not and is the one to correct mistakes.