For high school students applying as engineering, computer science and even biology majors, the mid tier UC’s, UCSB and UW (Seattle) have gotten more difficult to get into than say 3, 4 or 5 years ago. Your daughter has a high GPA and ACT score and they would be good enough to get admitted to the mentioned schools if applied under a less impacted major. It is a lesson learned for your next kid. I would not count on getting off the waitlist. If it happens, great.