We are also looking at the numbers in a vacuum. Check out the 3.5 stat block. Tell me, from it
Could you determine how its AC is 22? What amount is natural armor, deflection, dex, etc...
Could you tell me what it skill points per HD is?
It has only two feats listed (Point Blank and Precise Shot. What's its third feat? (hint, DDM cards don't list feats that add static modifiers like imp initiative or weapon focus)
Since the 3.5 card doesn't list the breakdown of how each stat comes into play, I strongly theorize neither does the 4e card. So that AC 20 MIGHT be neglecting some natural armor or skimisher "bonus", or the poison numbers very short hand for a rule that will be stupidly easy in the rulebook.
That said, I'll add a few theories to the pot:
Nethersight = See in Darkness ability
Poison 5 = Pain Ability
Seems clean and simple and more like something I can remember to use easily, rather than the kinda confusing mess the 3.5 card reads as...