It doesn't have titanforging so when you enter a raid and kill a boss you probably aren't DE-ing the loot from the first kill because it didn't titanforge and everyone has better. You don't have to grind 50 mythic+ for the same trinket you already have but with a higher number each new tier. Addition by subtraction.
Its grinds actually end, instead of being endless and wearing you down month after month.
And it has master loot, so it doesn't irrationally hate raiders that's kind of nice.
I'd prefer the retail game if it fixed all the awful shit wrong with it but classic will have to do.