I have programmed all my explorers to arrive prior to event end - short, medium, long and extended searches... Only one of the mails I opened today, maybe 15 hours past event end had soccer stuff in it; was away for 24h maybe. 22 explorers - one correct mail.
I've cleaned the shop and have 2.7k fb left... don't need any compensation. But I've said it before - sleeping/dozing zones is not working well; taking wheat from a field to another is marginal, messing the exact buffed (buff ending during absence) production a nuisance, but messing up mails wrt event end ranks high on ineptitude... comparing time stamp is child's play