My question is this: given that PVE/WvW has access to Rare Veggie Pizza for an additional +40% Condition Duration, would we see a DPS increase for this spec? For that matter, would a Condition Damage spec benefit more from a different food buff?
If you want any duration at all in your build, the food is the best place to get the first 40% because it is budgeted far less there than anywhere else.
In other words the best food you can get only gives about 100 condition damage. While to trade out the equivalent of 40% duration from Runes or from Traits or gear, you can instead get like 400 condition damage in those places.