You have three days before the food spoils. Then cook it and you have another three days on top of that?
Don't forget it's 3RL days of logged in time. So in reality even for the true Arm addict it's more like 6RL days of usable "raw ingredient" time. Followed by the same amount of time on the prepared item. So likely 1.5 to 2 RL weeks of usable food survival.
While it's 3 days of RL time, I assume that's only if it's in your inventory. So for all these party-planning-people with food concerns, I think that their food concerns are still valid because they'd have far too much of it to pile into their character's inventory when logging out.
All in all, I think it's a good thing. Only question about it would be like Lizzie already touched on. Not all foods are going to spoil at the same rate, some foods will take a really, really, -really- long time to spoil and others likely not at all.
Once all the changes are in, is it going to be food either spoils or doesn't? Or will there be in between levels of spoilage depending on the food?
I can see raw meat spoiling quickly, and some fruits as well. But something like flour, while eventually spoiling, will take a long time to do so.
I'm thinking that the additional changes that are upcoming will consider non-preserved-but-essentially-non-perishables VS very-slow-to-spoil-perishables VS preserved-and-in-essence-now-unperishables.