If Nutaku grew a brain stem, they'd realize we DO need DMM's pace to keep vets around for the long haul. Especially their precious whales (myself included), without new events and units, we'll get bored and end up dropping the game and there goes a lot of money. Plus, with more events comes more pressure to get perfect/near-perfect unit which might require SC spending *hint hint* especially for newer players who might need to grind in a hurry and have the cash to spare to buy SCs for that.
On the player side... 1 week per month of break should be sufficient to give people some relax time (vets) or grinding time (newbies) without "adjusting schedule to the game" (newbies have less leeway on this due to less max Charisma/Stamina if they don't want to waste natural regeneration but that's part of the game mechanics). If you're level 200, you can basically log in twice a day for half an hour and be fine. Lower level players would need to log in 3-5 times I think (what's base stamina, 6? 8?) but that's for even less time (less charisma/stamina to burn).
That said, I don't think ANYONE expects us to rush to try to "catch up to DMM" because that's simply NOT happening even if we have events every single week for a year. It's just pacing of new events/revivals/other stuff that's the issue.
@Lolix: One week of break per two months might be a bit too intimidating/fast for newbies. Vets might love it though. Personally I think my suggestion is a happy medium that would keep most players at least accepting, even if they're not thrilled.