What I don't understand is why, when EVERY OTHER SPOT IN THE GARDEN is Once Per Day, would they make the Furrows Per Harvest?

Why not drop the number down to something reasonable, say, match it with the fishing nets, and just make it so you can only get the point once per day? That would have made so much more sense than expecting players to zone into the ultra-laggy Mog Garden (I mean seriously, it takes 30+ seconds to load...) every hour or two.