Are Diamond boxes that important anyway, though? Like...sure, Platinum boxes get you 1-3 epics, from my experience, and I assume Diamond are slightly better than that (I have 12 I have to open), but...considering you can get specific and random epics from Multiverse completion and random epics pop up pretty frequently in Bronze through Gold motherboxes anyway, it's just like a slightly quicker way to farm epics? Or am I missing something about what Diamond boxes contain?
Edit: that said, schedules for the biggest reward multiverses seem like a good idea for community happiness, for sure, so not trying to take away from that complaint.
2-5 epics, usually 3 or 4. Having had 21 diamond boxes in the past day, that's a lot of epics. It's not like they hand out platinums that often either, that many epics that quickly isn't easily done. No multiverse event is handing out more than like five epics for full completion, and those are character sets. I got 30 epics from 11 fights.
Doesn't help that gold boxes are worthlessly expensive. Go bronze en masse, and win the highest level boxes you can.