Although it shouldn't need explaining, I will do you a solid so you don't put your foot in your mouth also. First I will recap the post...
Envy FA is not an automatic hit nor does it cap all the time for the toons that "can" equip it. Tro pistol AS is automatic hit and can either cap or crit cap every time it's fired off. So in an attempt to be cute the post is misleading and wrong in the worst possible way. Suggesting that a possible hitting weapon special is better than gauranteed hitting weapon special is silly in a pvp scenerio. 3 AS + 3 reg hits OR 3 nukes OR 3 perks OR 3 pet hits = dead.
Hopefully that clears things up for you.