Are lootboxes that contain lootboxes the improvements you had in mind?
I spent $10 worth of AP on these, allowing me to have enough AP in total to buy 16 of these "random" crates, and I received 2 of each crate. Exactly 2 of each of the 8 different crates. That to me seems like each box had an equal chance of being received.
It's a sad state of affairs where the lootbox for lootboxes has better droprates than the lootboxes
Also I got 450 chips from them in total. because of the terrible drop rates of the boxes, that deal is an excellent source of chips for a low price