I have no idea whether my kids have high MTAs or not. What I do know is that my daughter has done exceptionally well in both science and humanities courses (and has always been an A student in mathematics) her entire life. But at one point, she decided that she really enjoyed history, languages, and music more than chemistry, so she’s majoring in medieval studies.
Will she miss the science? Probably, but a person is far more than a sum of aptitudes, no matter what the testing people tell you. We all have preferences, weaknesses, and interests that go far beyond our aptitudes in any field, so the best advice I can give you is what’s already been given: Just love your daughter and don’t worry about grooming her to be something. She will figure out what moves her.