I think he's right - I'd say that people who played Legend trilogy and only then got their hands on Core's TRs find them clunky in controls - which they are. But that moment you're stepping backwards, counting steps to the edge, preparing for jump knowing that one tiny misstep will kill you...only in Core TRs.
That's what I loved about the original TRs. Everything was so meticulous and methodical. Once you had the controls down and understood the grid based level design, it was an absolute breeze to play. What I'd give for another TR game in this style.