I have one friend who works as VA Director on video games, done a couple of triple A projects so he knows the industry pretty well, and another who is a voice actor of like 10 years experience and I asked both of them about the story, they had the following things to offer.
VA Director friend - based on her playing the central character in a game which would likely contain several hours of dialogue centering on her plus all the various in-game sounds, grunts and other sundries that need to be picked up for an action game he comes to the following conclusions; Either they were massively lowballing her rate or were expecting her part in the project to be completed in an unreasonably short time and were attempting to force crunch conditions. He said $4000 is absolutely not what he'd expect for a role of that scale on a project like this.
VA friend - he says his experience is that the video game voiceover world is among the bottom end of the payscale for VA work generally, that there is a lot of bad culture about "the prestige," of the work and a lack of consistency of experience because it's a lot more dependent on how a game dev studio chooses to treat actors rather than working for like an advertising production house which is held to more rigorous consistent standards. He also pointed out that he got paid the equivalent of $2400 for a day's work doing voiceover for a washing powder commercial quite recently so $4000 for what would be, at minimum, weeks of intensive work was a bad look to him.