Why do people have trouble with XXX?

There were many puzzles I really struggled with and needed hints for. However I hear a lot of people say they found getting into the Ash Twin Project the hardest puzzle in the game and that one I did not have trouble with at all. For me the process of piecing it together went like: 1. The towers warp you to specific locations when those locations are directly overhead 2. These towers are for the Twins 3. Whenever Ember Twin is overhead I get sucked up 4. I can avoid the sand until the portal opens 5. Oh look, a cubby for me to hide in. What I'm saying is the logic was provided to me very naturally one after another. Did I perhaps gain some information prematurely that others did not that made it easier for me to solve it?