While you can tune engines to draw extra cards and control the game, some tactics are simply more consistent (bunnies can easily overwhelm an opponent, for example, thanks in part to the new Offspring mechanic)
I, for one, aside from collecting cards, want to learn how to play the game
Modern format has been graveyard-reliant by its start (remember Tarmogoyf being the threat of the format for 5+ years ) and even in 2022 many tier 1 decks (Murktide/Living end/etc) relies on GY
It literally looks as if they did it on Paint MS without any care for perspective or Pokmon proportion
The codes will not grant the exact same cards that come in the physical boosters, but six randomized ones from the collection to which they belong
What determines if they are a saint or a nasty is all in how you choose to play them