There's all sorts of uniques that have seemingly no inherent support. The idea is they're a puzzle meant to be solved, or you're looking at flavour affixes - affixes just there because they match the theme of the item, but aren't part of the power budget for the item.
I'm not saying warlock can't be themed around dodge as a defensive later, but it doesn't match the rest of acolyte. You'd need to argue why you think a warlock would have particularly high coordination and dexterity such as the rogue (trained spy and assassin), the sentinel (trained soldier and master of arms), or the primalist (part animal).