I think it's not difficult to give all players the option free gem videos. But what i've seen that the players that spent money on the game lose the option. With me it happened in fs and bs. Play since 2012. Stopped a while because they took my free gem videos away. I will never spent one more ? on my games because of this.
Without the videos the players have to buy gems for the nice stuff. And i think they only want that players spent money.