They need product for their scam channel unboxings, resealers, and other grimey behavior. To make sure they can sell the cards at a higher price from this forced scarcity that they caused.
I hate TCG has become investment stock. I swear half the unboxing channels all talk like investment bro's and clearly don't care about Pokémon. They treat it like investing in coin, don't even look at the card art, just throw the cards to the side looking for the money makers.