845 is a good ilvl for NH LFR. It's lower than EN Normal, but can TF up to match EN Mythic. It still drops augment runes, and you can still get legendaries.
Getting decent gear from LFR would be ridiculous - so far in EN you can ignore nearly every mechanic - ursoc charges, dragon swaps (just stack them)... If you got good gear from them, this would be dumb.