Not quite pointless, it does keep the cards in better condition, it's just that being in better condition has no monetary significance in an LCG. But might still be worth it for those of us that have certain quality control issues.
Also, I liked Dragon Shields and everyone around here loves them. But the second box of them I purchased were not cut/finished uniformly. They had a rough and uneven edge on one side, no one else's seemed to ever be this way, but I could never trust buying them again after getting such a crappy set and I've been looking for something else. Recently I had been using the Ultra Pro Pro-Matte sleeves, which have been my favorite and most consistent thus far, but I am going to try out these KMC hyper-mat sleeves for second edition and see how I feel about those, since they have had such rave reviews.