Loot drops need to be fixed

Bungie, I love yalls game. I have over 400 hours in Marathon. I try and play for a few hours every single day but one thing has been irking me lately and that's the loot drops for Superior Key rooms. Why is it every purple key room I've done for the past 2 weeks I've been getting nothing but Blue drops. These are not blue key rooms bungie so it shouldn't be crazy for us to think that we should be getting Superior grade loot but everytime we get a Superior key we get nothing but blue items. I'm not sure if this is the result of the patch yall made very early in season 2 nerfing alot of loot drops but this is very dissapointing and something that needs to be fixed as there is almost no reason to be doing these keys at this point if there not going to be dropping loot at the same level as the key room.