Indeeeeeed! Excellent analysis. Now let's move on to the technical aspects of the style. It is given that this style requires full mastery of the Genjutsu arts. In order to counter the taint, you need to understand how the taint functions. You are, in essence, fighting genjutsu with genjutsu, and that falls under the Genjutsu Layering Rules. I described how the style works with it, but we're going to have some exercises about it. Before with do so, do you have any questions?
Secondly, with learning Surreal Palm, you will frequently undertake mediation exercises that deal with casting genjutsu onto yourself, and, navigate through that self-imposed genjutsu in order to discern illusion from reality. This is in order to build your Genjutsu awareness, in order to prepare yourself to receive upon you the taint of others, and then swiftly purge it out. This build up your awareness, inherently, but not your immunity. Being aware of what is real and what is not allows for immunity against mind-sealing techniques, as you stated, but not against genjutsu that is binding your senses. If a jutsu says you're paralyzed because it transports your consciousness to a different realm, then you are immune to that aspect of the genjutsu, because you can always center yourself back to reality, but if the genjutsu paralyzes you because it sends you vines that bind your body, then you must go through the proper tools that the style gives you in order to purge them.
Thirdly, we shall understand the difference between Experiencing the Style, Studying the Style, Mastering the Style, and being a Master of the Style, as they are different.
The first, we can call it the Beholder, is marveling the style, or battling it. It's important to make the distinction because the style is meant to be seen, it's meant to amaze. The techniques aren't so much for practicality as they are to be behold, they are art, they are elevation, and if your target isn't being transposed to a realm of breathtaking wonder, then you are falling.
The second is the person entering the style, and starting to learn and train in it. Without having ran through all the existing techniques, the one is still considered the Artist, and will still be able to use the fraction of the style he learned in order to amaze the opponent, and bring balance to the self. The Artist has the tools, but not the yet the virtues.
The third is the fully fledged Artist, that acquired all the existing knowledge of the style. He is the impersonation of the art, and it's creator, he is the Dreamer, the Dream-Catcher. Having completed the style, the Dreamer will have mastered all that is to master, and is fully capable of upholding the teachings of the Surreal Palm. Some virtues, which nothing but special bonus, can be applied to those that mastered the style, but not all.
The fourth is the Dreamer that took one's knowledge of the style beyond it's mastery. He is the Wonder, the Surrealist. The full Masters of the Surreal Palm chose it above all other Fighting Styles, and, for that, acquire the full virtues of the style, as stated not only in the individual submissions, as the virtues of the Dreamer, but also in the style submission itself, the higher ones.
Do you have any questions on these points?