After a quick look over, there are three things I have question with:
1. Where was it stated that Ganon couldn't curse Link? Hell, doesn't Link being cursed into his Wolf Form eternally by Zant who was using a fraction of Ganon's power disprove this?
2. Why would you make the assumption that Guardian Beams would possess the same properties as the Ancient Arrows just because they are powered by the same substance?
The Sheikah fluid is a very verstaile substance which can do tons of shit, from manipulating metal to stopping time, so just saying that they are powered by the same energy doesn't really mean anything.
The Ancient Arrows are specifcally created by Robbie, not the ancient Sheikah who created the Guardians.
Not to mention, the Guardian Beams have no mention, nor any visual showings of erasing things from existence, just blowing shit up.
3. I don't believe that turning yourself two-dimensional means that you are intangible for one, and secondly, doesn't Link obtain the ability to become 2-D because of a Ravio's Bracelet? Which is an item, and therefore, should be in the item section, not the innate abilities section.