As I recall, though, there was some disagreement about some of the examples you gave e.g. "enjoy" could be categorised as optative vs imperative.
I do wonder if perhaps there has been some miscommunication e.g. perhaps,during teaching time a child in the class when asked to form an imperative, gave an example of "I hope you enjoy your food" or "I asked Mary to talk to me" which the teacher pointed out was not imperative, with the meaning lost in translation?
I can't help but think that your true motivation here is simply to point out that the teacher is wrong because, on the information you have, you know she is. If you were her colleague or her friend or if you had any doubt about whether or not you were right, I would see this as being very reasonable. However, in this instance, I think you just want to say it because you can. I think it will embarrass the teacher and make no difference to her teaching.