no, not dumb on your part at all, I try everything once or twice.
I think their technique is dumb, I have never been a fan of fresh frozen material, now they are marketing it as such. I always let mine get bone dry, but I do not let it sit out to long, I wait about 5 to 8 days on trim becuase mine usually sits in a kiddy pool till its dry then I vac seal it and put in freezer till it is time to blast. For flower I wait 7 to 14 days till it is bone dry then vac seal it and put in freezer till I am ready to blast, i have gotten bud from people that was still kinda fresh and I put that on a piece of cardboard in my cabinets and let it get bone dry then vac seal and freeze.
Also I have noticed if you bag up material even vac seal material and you do not put it in the freezer it degrades the material or will give you darker oil and that old weed smell, so I advocate to every one put your material in the freezer until you are ready to work with it, and I highly recommend vac sealing it so that you do not get the moister from the condensation when you pull it out.
When I am getting ready to blast I pull the bags out and let them get to room temp to avoid the moister associated with the cold. Then I pack the tube then they go into the deep freezer with the dry ice and get really cold, let them sit for 24 hours then I blast.