Its likely that the cards were stolen before they would have a chance to impact the actual pull rates of cards, as the machines that automatically sort the cards by rarity would have run out and needed to be restocked during the production process, although that assumes that the cards were stolen outright instead of swapped out with a different box
In what other scenario would companies whose goal is to sell as much product as possible, as quickly as possible, take steps to slow the sale of that product
Reduces damage by placing Black Feather Counters instead of taking damage from card effects
However, the card's integrity isn't affected and can still be played at tournaments when sleeved
The deck then has a number of cards which help you draw when you play creatures (beast whisperer, seer's sundial, lifecrafter's bestiary, etc) and generate value
The next Secret Lair drop deserves a special shout out, because all of the cards contained within are EDH staples found in the majority of MTG Commander decks