The reviews are bad because the content is threadbare. I don't know how many times "There isn't that much to do" has been said in a myriad of ways.
Everyone seems pretty happy with the mechanics, which you'd expect since, you know, Bungie, but the disappointment is around the content and the sameyness.
When I heard that some major guns were chest drops, I kind of lost interest, because that's rather a major red flag. I am sorry to hear that my fears were realized.
On another note:
3459 Vitality
12,476 Armor
78.09% damage reduction
And my lowest two resistances just barely top out over the soft-cap (70.25%)
All this, and yet I am still a paper tiger, in T6.
Sigh.