Additional scripting skills would not significantly improve GGGB or any other game Eve creates in the future. Currently the vast majority of her workload is writing, and drawing. So even if she managed to boost her scripting skills so that she spends 1/2 or 1/4 as much time scripting it would not help a whole lot. Between updates of working on it I would bet she probably spends 12-15 writing, 8-12 drawing 2-4 scripting. The scripting is the least time intensive portion of the creation. It's the most repetitive though, and probably the least fun.
Eva doesn't really "need" help in creating her game. She makes a better game by herself than most teams of creators. If she were to hire a team, I would prefer it that the team worked on either art, or scripting, and not touch her writing unless it was just proofreading. I think a talented artist may be of benefit to her projects if they are capable of mimicking her style of drawing, and a coder could definitely save time. However I'd hate for her to lose any form of creative control. The addition of an artist or coder could mean more images, and faster updates.