One thing that I found could be done to make things easier is:
When in an event you get say e.g. 3x1* packs or 3x2* packs you have to click and wait, click and wait, click and wait.
Could they not just have a button that provides a “Claim All” then that way it’s one click and then they just have a line up like they do in the roster section of “Claim your rewards”.
Just a thought.