Both you and OP... where does anyone have the idea the chance is increased via the gemstore? Datamining reveals the tickets as drops and from the gem store are identical. I agree the purchasing ability is bullshit, but the chances are equal.
I think they just meant that people with "mad-money" where they can buy extra chances from the Gem Store increase their number of chances with less work/game-time than those who play the chances they get from drops. I'm with you though, its OK...they just needed to not have them in the Gem Store.