You can optimize all you want, but this isn't min/maxing DPS in WoW. There are way too many random factors.
And maybe some people just don't care about optimizing. After optimizing your chances you might end up with crap while some people get stuff from single draws, some people get 3 URs in a 10+1 draw. It doesn't matter at the end of the day.
We all know there is pretty much no chance to ever get the card you want. There are hundreds of cards and there is no way to influence what you get. And while some people can wait a year for klab to implement the changes in JP, there's no fun in waiting. Telling people to wait and how to level up doesn't really concern you either.