I don't think that's an example of FO4 being dumbed down for consoles. Having just four dialogue choices isn't a problem in itself--you generally didn't get more than that in FO3 and FO:NV. It's the *content* of those choices that's the big issue here, and that could be anything you like whether you're playing the game on a console, a PC, or a 1200W toaster oven. The problem is fundamentally that the writing and plotting in FO4's main game is awful, and no, having to voice-act all the lines does not excuse that.
Definitely not a case of "dumbing down". I truly prefer this system to the non-voiced protagonist in these type of games. I have not owned a console since I bought Golden Axe and a Sega Megadrive to play it on.
Blizzard Battletag: UnderDog#21677
Shepard: "Wrex! Do we have mawsign?"
Wrex: "Shepard, we have mawsign the likes of which even Reapers have never seen!"