Alliance Triple Triad Card Rolling

This issue has been brought up before and I've seen topics on it dated back over 5 years ago. Please fix this as I'm going on 10 runs this week alone trying to just get one card to complete my collection. Why is it that people are still able to roll need on these cards that already have them? Just so they can get alittle MGP for trading them in, when a GATE gives more? Why implement this feature for the minions, but not the cards? I've seen posts about people running alliance raids over 150 times to get one card. I feel I would have a easier time getting this card if it was like how you obtain them from duties/trials rather than rolling against 23 other ppl. Please fix this so the system is fair.

It looks like the cards are stacked against you.

In all seriousness, you'll probably get it if you do it once a week until 7.4. I seem to have so far.