Monks with Offhand Weapons

I've just recently gotten my Dark Moon Monk into SoA and found Belm. I was amazed when I equipt it to my offhand and I still retained my monk bonus' with fist weapons as well as the APR boost from Belm! So my level 11 monk is running around with 5 APR very early in SoA.

Is this a well known thing to all you monk players out there? It was a pretty sweet surprise to me.