Let me again reiterate something that I drew your attention in the past:
You lost in some categories (despite high quality of the program on the technical and didactic fronts) at least on star in the survey because of the manner this survey is delivered in the middle of a lesson in a most frustrating and hampering manner which I feel aggressive, if not outright harassing! If you need feedback, do offer your surveys AFTER the end of a lesson (at the moment of a switch from one lesson to another) to avoid an absolutely PREDICTABLE distraction in the middle of the learning process and high concentration - I don't think this is something that a reasonable person cannot predict.