He might mean the igavanias (SOTN, OOE, Harmony of Despair, etc.)
Even they had some measure of vertical progress. True horizontal progress would end up affecting the need to explore and find more powerful items. It was far more interesting facing a boss with new stuff instead of playing richer mode and "Hydro Storm!" Ing everything to death.
Or to take a page from Harmony. Floating Soma with Valmanways. You practically won the game the instant you had this overpowered monstrosity of a build. Takes a lot of the teeth right out of a fight, and the game, for other players once you had two or three soma with em.
And no matter what additions there were, unless it was a Valmanways +1 soma players wouldn't touch it. Seems like a waste, right? And it poisoned everything those blades touched.
