they think, that because you get 3x as much mats as you hand in, that this is a gain
let me tell you all the losses
first, the ground secretions are guarded, fairly heavily.
second, noone has found higher than q80 that i know of, although, i dont think this seems to matter as far as avaialability of coupons for higher Q missions, im not sure on that, sorry

thirdly it takes quite long to get a good group together, get organised, get to the area, clear the aggro, make your way to the secretions area, and harvest them
fourth, and most important, is the retarded runaround you will have to do after you hand in your secretions. here is how it works
1- hand in secretions at harvest camp
2- go to craft camp, take mission, finish first mission wihtout any wondermats, get package and preorder form
3- take preorder form back to harvest camp to get the "free" mats
4- go back to craft camp , take a mission, now u can use the free mats u finally have, finish mission, most likely having to use a few of your own mats (99 isnt enough for some things they want crafted). maybe get another preorder form, maybe not, depends if any are available
this is incredibly time consuming
i can tell you from mine and my guildies time tests, that i can create more packages by NOT doing secretions. i just harvest like normal, fill with mats i know ill need, head to craft camp, take missions and craft till im empty. this makes me 3 packages on average. then im right back to harvesting , very fast, very efficient
remember folks, the goal is to get packages to the fight camp, not dig for secretions

each package creates a soldier for our army
i really hope that gets the high harvesters and crafters in on this. its very easy to help if you follow my method. you can help SOLO

edited out an error, sorry for the misinfo , its fixed