Seem like good rewards to me. It's RNG and they are more in line with what Nightfalls used to be. It is easy loot. What would be nice is the experience boost and/or the faction rep boost. What you want is a guaranteed 310 exotic or weapon right? There would be no point to continue playing if you get all the stuff within 3-4 weeks. Coins are good now because you can;t get them in the heroics and you can use them to but 3oC, which is like a 15-20% chance of exotic, far and away better than an exotic chance otherwise.