It's one of the primary justifications Magic uses to print absolute (constructed) useless chaff in their sets.
This causes for (lots of) undesirable cards to opened in packs which in turns drives up price of the desirable cards.
Opening crap in Magic that/s like a 1/5 for 5 mana/resource is an emberassment to a game (and the player base) that's been around for 2 decades.