Does not matter what anyone starts with, the main part is not swapping around. There is no need to start with an LD shaft or a standard shaft, once you learn to play with either it's all the same, just need to stick with that type of shaft.
If you start learning with an LD shaft, you will naturally aim closer to the normal aiming line with side spin, if you start with a standard shaft you will do the same but will need to learn to adjust for the spin deflection. Either is just as good as the other, with the catch that what is uses should match how the player actually aims or how they like to aim. A player shooting with an old shaft that deflects a ton does not automatically play worse than someone using an LD shaft, as long as they know how to play with the shaft they are using.
A well-rounded pool education needs to have knowledge of how all types of cues and shafts react to the hit and the differences between them and how to adjust for them. Knowing how the cue construction affects the hit and balance, how the shaft and tip affect the shot and feel, etc... What the player starts with does not matter at all.
In my opinion, new players will learn a lot faster with an LD shaft than a normal one, the shot line will be straighter for all types of shots, and especially with the Revo that is forgiving on slight off center hits. Just keep in mind the above sentence that they still need to know why the shaft does what it does and how other shafts would affect aiming.