I feel that the special skin co-op crates get taken off the game a wee quickly. I mean, event rewards are obtainable a month after event end, so if the crates and tokens could stay at least a day after the co-op events end, that would be lovely.
While the game does indeed give reminder toasts that the tokens expire soon, the timing of those reminders perhaps isn’t entirely ideal. To me they seem to pop up right in the middle of the campaign, since they are so short lived.
If I’m not mistaken, these crates used to stay 24 hrs after the co-op event ended, back in the day. Not sure why that had to change.