My daughter might be able to do well with a state curriculum (she likes worksheets and such), but she prefers working with the Charlotte Mason method. She has an incredible memory (I have read her long stories and asked her to narrate back. When I thought she wasn't listening, she narrated back details that I had not even paid attention to). It works best for her.
My boys on the other hand, all learn differently. I have a hands-on literal type (going to start Montessori and some unit studies with him. he's in Kindergarten this year) and a visual learner, also (he's doing Classical Education this year). I know in my little family I have many different types of learners, who are interested in learning different things at different times. A state curriculum just would not work for my family. They would get bored quickly and not retain as much.
Home schooling is like so much in this world-- it's changing a lot faster than I can form opinions about it. Different families have different needs and different resources so the Texas Tech schedule might be good for me and not for you all..
I'm a great civil engineer and a so-so educator. OTOH, my wife is one terrific educator and she can glance at a course schedule and say what's good, what's bad, and what's missing. What I personally like about the Tech program is the kids are covering all the subjects that their peers elsewhere are going over so they will not be saddled with any disadvantages. Also they enjoy it, and it's a program where I can check their progress.
All this has to be kept in perspective, that 'book-learning' is just one part of a parent's total set of responsibilities. It will never take the place of spiritual education, developing a work ethic, music appreciation, and other stuff like nutrition and physical safety.