Outside of the showcased garantueed amount of T3 and T4 crates, a player who buys crates has no idea what else they might be getting. It's implied that the rest of the crates, outside the garantueed high tiers, will be of a random tier.
Without the odds for each tier of crate displayed I have no idea what I might be getting.
I'm guessing the chances are favored towards the lower tier crates, but I have no way to know It's not just 99% for a T1 crate and 0.33% for T2, T3 and T4 (This is obviously an extreme example).
Please present the odds in the store so I know what I'm buying.