I really much preferred the first one of these events where there where 3 tiers you could work towards - T1, T2 and T3.. all with the same augment (Freeze in that case) .. but I kind of figure since this structure changed, perhaps too many people managed to pull all 3 of those. Which NG didn't really like.

Still would be nice if the evolution soul granted at least a random chance of pulling a T2 or T3 rather than always being a T1. It is nice to have the defined augment.