Awol57,
Fair explanation and I understand an instructor must follow the protocols of his/her school/employer. Glad to hear that sideslips were still covered so that the skill can still be obtained in the early stages. Would agree that if the average trainee needs to sideslip on a normal approach in a 'normal GA trainer' their ability to rescue the already dodgy approach is probably suspect
However it can help with a glide approach that has been left a bit too high for a bit too long!