One, the unaware have been snared by the name of The Most Difficult Puzzle in the World, which is just a sliding block puzzle, and kind of even a well-known one that gets used in The 11th Hour and some other things. It's deterministic and has a known series of inputs to solve. The speedrunner is going to know how to do it. You've been hoodwinked.
Also someone called Lufia 2 "underrated." No, man, it is rated. Even if it only had the dang Ancient Cave in it, it would be well-known and well-liked. Heck, Lufia 2 might be the most rated game I know.
People will log on to the comment section of GDQ and just make things up. "Lufia 2 is underrated." No it is not. That is not true.