Oh yeah, especially with the lack of sliding physics, mainly in Allegro Presto. It's just filled with an excessive amount of Hunter's instead to make it harder.
The extra platform at the beginning of Bongo Hills is interesting too and how you can reach all the platforms, but no longer can in the other versions which basically as you said means they did have thay version in mind for some of the design.
The lack of sliding physics is another mystery though, especially since the platforms from the non sliding version remained in the other versions still yet you couldn't reach them.