All bugs (good and bad)....poop and lay eggs...and die. So while those beneficial insects are eating all the pests, they are also pooping and egging and living out their entire lives all over your plants. Is there a benefit to smoking beneficial bug poop? I'm not sure if I'm aware of any studies on that.
In terms of plant health and natural "organic" remedies...yes, the pests get eaten and the plants don't die. Maybe it's possible to keep them "under control". Even if you wash your buds before hanging them to dry, are you certain that you're getting ALL the "junk" off the flowers?