That's likely the difference then. I would get 2-3 coins from visiting all my neighbors...but I've got 49 pages of neighbors. I assume since your city is smaller that's one of the differences. I also have all magic residences, and at the time had a lot of culture buildings. With all the visits, and EE on every one of them, my culture boost varied in the 500-600% range. So a lot of coins there too. Based on all that, yeah I could sustain filling in the gaps with coin rains for quite some time. But I see your dilema.... For coins, I visit everyone and come up short. Maybe I can look between the sofa cushions and scrape up the rest to make 1 coin badge. Then I have to wait almost a whole day to do neighborly visits again. I cannot speed that process up with time Instants. I cannot speed up my resident coin collects with time instants either, though trying to get a coin badge from residents will prob take another day....
As far as the peeps saying "We're never doing FAs again," I say whatever works for them. The forum is full of people saying how they hate something in the game now, they're done, etc. And yet we seem to still be playing it.
In any case, you guys still did a great job in the FA's, so congrats!