I'll go in to more detail as to why so many people are disappointed with the loot system in this game. Partly it's because it fails in comparison to the first game, but there's more than that.
Oranges in the first game were another tier of weapons, they slotted in to the scale system after purple.
In BL2, they removed the orange weapons class and made them uber-rare uniques that are extremely difficult to obtain unless you get extremely lucky. It was far more rewarding and addictive, you wanted to play more because the chance of good loot was much higher, while at the same time it never felt like it was giving away all the good stuff too easily. That's balance.
To look at it another way, a comparison of the rarity index in both games:
BL1
Common - White
Uncommon - Green
Rare - Blue
Very Rare - Purple
Legendary tier 1 - Yellow
Legendary tier 2 - Orange
Legendary tier 3 - Dark Orange
Legendary+ - Pearlescent
BL2
Common - White
Uncommon - Green
Rare - Blue
Very Rare - Purple
Legendary+ - Orange
This made the Borderlands 1 end game awesome. As you play there's a scale, you start out getting mostly whites and greens, as you progress you start to see more blues, then purples become more common, then by the end of PT2, oranges are a regular weapons class just like the other colours. It was a great and balanced system, they added in Pearlescent as a bonus tier for hardcore players, which we all appreciated. Now in BL2, that scale of progression disappears towards the end of the game. They replaced an entire weapons tier with a system that forces you to kill bosses hundreds of times each just to obtain a weapons class that became standard towards the end of the first game. That's why people are left feeling unsatisfied.
Purple is basically the top "standard" tier of weapon in Borderlands 2, and purple weapons really are not that interesting by the end of the second playthrough. You're left with either grinding bosses for hours on end, or not getting these weapons at all, and it sucks. I cannot understand why anybody would defend this system, and I can only assume it's because they don't understand why the loot system was so good in the first game. There are more issues that involve parts variables that I can't even be bothered getting in to with this post.
Oranges in the first game were another tier of weapons, they slotted in to the scale system after purple.
In BL2, they removed the orange weapons class and made them uber-rare uniques that are extremely difficult to obtain unless you get extremely lucky. It was far more rewarding and addictive, you wanted to play more because the chance of good loot was much higher, while at the same time it never felt like it was giving away all the good stuff too easily. That's balance.
To look at it another way, a comparison of the rarity index in both games:
BL1
Common - White
Uncommon - Green
Rare - Blue
Very Rare - Purple
Legendary tier 1 - Yellow
Legendary tier 2 - Orange
Legendary tier 3 - Dark Orange
Legendary+ - Pearlescent
BL2
Common - White
Uncommon - Green
Rare - Blue
Very Rare - Purple
Legendary+ - Orange
This made the Borderlands 1 end game awesome. As you play there's a scale, you start out getting mostly whites and greens, as you progress you start to see more blues, then purples become more common, then by the end of PT2, oranges are a regular weapons class just like the other colours. It was a great and balanced system, they added in Pearlescent as a bonus tier for hardcore players, which we all appreciated. Now in BL2, that scale of progression disappears towards the end of the game. They replaced an entire weapons tier with a system that forces you to kill bosses hundreds of times each just to obtain a weapons class that became standard towards the end of the first game. That's why people are left feeling unsatisfied.
Purple is basically the top "standard" tier of weapon in Borderlands 2, and purple weapons really are not that interesting by the end of the second playthrough. You're left with either grinding bosses for hours on end, or not getting these weapons at all, and it sucks. I cannot understand why anybody would defend this system, and I can only assume it's because they don't understand why the loot system was so good in the first game. There are more issues that involve parts variables that I can't even be bothered getting in to with this post.

