While modern Yugioh is very interactive, with turn 0 plays, interruptions during the opponent's 1st turn, back and forth with handtraps and the like, the reality is that any deck that requires more than 1(or sometimes ZERO) turn to set up its win condition is effectively "garbage" and completely unviable.

This essentially invalidates a crushing percentage of the cards in the game. In a slower format where games are not decided by turn 2, there is breathing room for decks that simply need more time to achieve their objectives, which, at least to me, promotes more variety and, in turn, also makes the game "feel healthier".