This idea has been developed and deployed to Canvas
It was suggested by one of our teachers to have the ability to add feedback to distractor items individually, not just the correct answer, in Quizzes.Next. The idea was to give specific feedback on each distractor, not the same for all distractors. This would make it the same as the current quiz platform.
This could help students gain a better understanding of the content by learning why a distractor is incorrect. This would be especially useful when students are working in a more self-paced or flipped environment.