How about:
You don't include platinum/aya in the pack at all,
discount the price,
make the skins available for platinum purchase, (you still get the money this way, from someone, somewhere)
and don't make them available for a limited time. (they will bring in more money over time)
I bought it, you can see that I bought it, and I can plainly see all of that needs to be changed. You think it would be unfair to me to remove the time limit? Nah, this is unfair to your community. It's predatory and preys on FOMO. This isn't Excal Prime in those critical early days, and I was there for that, too.