All poker sites dont necessarily lose money if the tourney does not meet the guarantee

21500 GTD Needs with a $200 buyin only needs 100 Entrants to make the guarantee. But in theory the site doesn't need to hit the guarantee. There is $15 in dead money going directly to the site every time. Just like with every tourney there is rake. Also most online poker sites make way more with rake than they do with tourneys