It's not a lost cause at all. Go pick up Divinity: Original Sin, or Wasteland 2, Planescape and Pillars of Eternity when they come out (although I think I've seen you in those conversations, so I may be preaching to the choir). The feature is not dead, it's just not being used in games that are required to sell millions to copies to the masses. Of course, if any of the above games prove to be as enjoyable as I've found Divinity and if DA:I proves to be as ill-received as DA2, then the AAA RPG (aside from series which use the silent PC, like TES and FO) may not be viewed as a successful model.
Already got the GOG version of Divinity: Original Sin. I've been a fan of Larian ever since I got my hands on their Dragon Knight Saga game with it's awesome mindread ability.
But anyway, D:OS has voice acting, not fully voice acted but there's commentary from the protagonists on the main story points. But that doesn't mean I consider it a bad thing since the game puts itself in a unique position than most other games by having two equally important protagonists. The feature is not completely dead, sure, but it is being used by fewer and fewer games. Even the low budget games usually come with tacked on voice acting for the protagonist these days when the developers could use that money in better places, an example of that would be Bound By Flame.
And that's really what I'm saying. Among developers these days, it's like it's this bandwagon they have to get on regardless of the challenges of including a fully voice-acted protagonist, otherwise they get left behind. They only see the "voiced protagonist or no buy" gamers.
In the case of DA:I, I doubt Bioware will ever point towards the voiced protagonist or any other part of their game's dialogue system if the game doesn't do so good. DA 2 is the proof of that, otherwise they'd have removed paraphrasing completely.