First of all, you cannot simply compare Wishing Lantern with Lucky * since they are different from each other in terms of the mechanics .. Wishing Lantern is all FREE, all you have to do is to lit up your lantern and send request to your mates and wait till you hit the reward while the Lucky * requires you to SPEND your resources in order to get the milestones rewards .. Of course, by spending you'll get all the rewards because that is part of what you've paid for ..

And for your concern about choosing what you want to get, like you value the 3000 reward more than the 5000 reward then the answer is also simple, do some maths and get what you want ..