Both styles have their merits, as evidence by WoW beginning to implement a 'timewalker' feature where players will be able to run old content dungeons with prop

Both styles have their merits, as evidence by WoW beginning to implement a 'timewalker' feature where players will be able to run old content dungeons with properly scaled stats (it will offer rewards useful for max level characters). There's just so much content in the game now, glad to see them making the most of it in a relevant way.