Jon, I’m assuming that your daughter is currently a senior waiting to hear about acceptances. Also, from the statistics you listed, her credentials were similar to my kid’s. There are jobs with this major, but you have to combine it with something, such as computer science, or plan to go for a master’s in speech pathology afterwards. Of course, if you’re hoping to go into research, there are so many fascinating subfields - neurolinguistics, psycholinguistics, cognitive linguistics, sociolinguistics, etc, but it certainly would be more difficult to find a job right out of your bachelor’s with those.
For her, it sounds as if UMass Amherst would have been a good fit: good price, in the Northeast. She probably would have also gotten max merit aid, for an annual cost of about 30K OOS. The problem with Linguistics is that not many schools have it at all, let alone comprehensive departments and the opportunity to do research.
If she’s currently a junior, I think it should definitely be on her list. And if she is unhappy where she is accepted, she could consider transferring. I don’t think that she should take a gap year to buff up her application. Better to get started somewhere, establish further credentials at the college level, and transfer. After all, what’s she going to do during that gap year that would improve her credentials? Retake the SAT/ACT yet again? Do more volunteer work? Work a menial job? In general, gap years are recommended for kids who’ve been killing themselves to get that perfect record that gets them into a dream school, then need a year to go do other things, like travel, volunteer abroad, whatever, to clear their heads, mature, and enter college with renewed enthusiasm for school. Or they’re for kids who haven’t worked hard in high school, and need some time to grow up, to the point that they value education and are willing to work hard in school to get something out of it. They’re not appropriate for focused, goal oriented students who aren’t burnt out, and who want to learn, nor are they appropriate for students who want to make another attempt to get into that dream school, rather than moving on with their lives.