I really don't see any reason why it should. My loot rewards seem random enough or at least as random as every other game employing RNG drops that I've played. I tend to question the experience of players that are not satisfied with the current system because it seems as though they are not very familiar with RNG item drops and the like. Hell, some players wish for there to be a distinction between RNG and pRNG when talking about video games. I don't believe that I've ever played a game that used an actual RNG over a pRNG. So the distinction, when discussing video games, seems to be moot. The fact that it is a pRNG rather than a true RNG is why we will sometimes observe patterns. It is even possible to exploit the current system if you can figure out the seed that is used. This RNG exploit was used quite often in Pokémon to obtain Pokémon with more competitive IVs. If other players believe that RNG loot is not appropriate for Destiny, then I would be willing to hear their argument and their proposed replacement system.