First off, crafting surveys have been around since before housing became a thing, survey nodes give no housing materials because of this. I hope this can change. it'd help make alchemy and enchanting writs somewhat worthwhile if you're into housing. As it is now because you get hundreds and hundreds of the runes and plant based alchemy materials, I could see people just throwing away alchemy and enchanting surveys, I don't personally, but I would if I had never had the crafting bag.
Second, for alchemy surveys it'd be nice to also have some sort of cache of animal based parts in them, similar to how clothing surveys have the traps that yield leather. Personally I always run out of mudcrab chitin since I don't just automatically kill every mudcrab I see, so when writs need mudcrab chitin I have to go out on a mudcrab purge, which is pretty boring, or I have to pay someone else for their boredom farming mudcrabs. I don't have to do this with any other alchemy mat, but I could see eventually needing torchbugs and butterflies.. so.. alchemist's satchel with insect and crustacean parts, yeah?
Does anyone know if Hakeijo can drop from enchanting survey nodes? If not, that'd be nice too.