The problem is not just winning the tent room (get to the jungle cruise dock right as VMK opens and you really do have a good shot at it!). The problem is getting the pdf flyer redeemed. It can only be redeemed at a real park, and now, each person can only redeem one every 90 days instead of the original every 30 days.
I live fairly close to Disneyland and I have redeemed a couple of tent room codes for fellow dis'ers, but I cannot redeem another for another 90 days. Hopefully, I will be able to redeem another for me at that time. That is the difficulty in getting the tent room. You need to be able to get to the park.