Rotations do teach something. They describe the most efficient way to utilize skills of the same category in order of their descending utility. There is nothing wrong with telling someone that "If you have to choose between skill X and Y, X is better and Y is the best backup". There is absolutely a reason why that is the case, and those are teachable moments. A player can explain that quite simply. Rotations are far more than just a "spoon-feeding" situation unless you are only telling a player what skills to use and not why.

I stand behind my point that they do not harm more than they help.