So, I think that these events happening with more and more frequency will actually get addressed in the game... there's a point where Akira says something along the lines of "wait, Christmas? Didn't we just have that?" where all these special events seem to be happening more and more quickly (
DeSkel15 pls back me up with screenshots thank you).
I'd like to believe that this will be related to the various gods fighting each other for power, trying to wrest control back to themselves, thus sort of "speeding up" time? But at the same time, that might just be a convenient excuse for Sel to keep cramming these events in as well.