Perfectly. Very happy for you. Should be we play different games. However – it does not matter.
I dont know what to tell you. The only way you can underestimate the power of nimble build is if you never tried it yourself. Beating 12 orc warriors is not impossible, you just need to make a highly specialized party.
If you dont believe me find the Orc Warrior thread i made some time ago and in it people posted screenshots of beating orc warriors (i think meeky beat ~20 of them).
There is nothing to underestimate. IMHO nimble, magic horn and perfect focus are exploits. Excluded from use by houserule. Perfect focus nerfed in this update and i think other two eventually will be.