Marauding Ranger is a build based around throwing things and charging things. Often in the same motion. Horned Helms and Vanguard weapons will find their way in there. As will Bastard Swords. The big question is whether Marauder Fighting Style or Hunter Fighting Style is best to go with it... do you want the TWD and the extra movement, or do you want Quick-Draw, quick sheath of weapons, and the +4 to defenses against OAs from ranged attacks.
Cause then you're going Tratnyrs and Mordenkrads, my friend.
I don't think they missed it. Why do you need 'barbarian' at all when the power above it is 1[W]+Strength+Wisdom damage and can be used instead of MBA on a charge. If wisdom is 18, it's better than howling strike.
Miss it? Dare I say that sort of thing is intentional.
The sky is not falling.
As for the second... again, you're saying that a power is broken because... let me get this straight, in heroic tier it does the same amount of damage as the single-class build provided you in the booK?
Seriously. It's a ranger. Heaven forbid they get a build where Twin-Strike isn't the weapon of choice.