I dont think hunting for single hidden blocks or performing (tas) glitches and pixel-perfect jumps are puzzles.
Sure smb1 is limited, but it just doesn't work as an puzzle hack.
By stating you've faild to find what makes up the puzzles, it's highly likely that you have played just a first few tutorial scenes, and specifically not past the 1st world.
By the way, not only are glitches totally unrequired to complete, many of the glitches are also fixed
in this hack.
This hack is not for everyone, as I've said in the news article. And I didn't design this hack to be intended for people not familiar with the smb engine.
In this community there seems to be a kind of opinion that people should think before making harder hacks. My opinion is, that still depends on the demographic.