...considering how in 3.5e Warlocks were allowed to be chaotic good (playing with dangerous powers but with good intentions), I'd say that it's pretty much a spot-on archetype for Wyll there. He's also the only companion to turn on you if you decide to side with Minthara during the grove battle, so that stands for something - whereas Gale is more of a goodish-leaning true neutral, who approves of actions that are well-intentioned and reasonable but does consider a deal with Raphael because it could be a potential solution to his problem, and tries to mitigate the collateral damage of his arcane STD.
