This will bring some improvement. The Saxon Math is too repetitive, but better than what’s currently done.
I agree for some children it really isn't necessary to do every problem.
If a child is motivated and bright then it is possible to do the problems and examples related to the lesson. Then do only the odd problems one day, and the even problems the next. The student still gets the review with less repetition.
In our homeschool we did all the problems and examples. It definitely paid off!
The repetition is part of what makes it successful.
The best part, however, IMO, is the easy explanations of the problems and the lack of clutter on the pages. My editions are black and white with some diagrams. Not pictures of groups of racially and gender balanced kids happily working with manipulatives with the only white male in the pictures sitting in a wheelchair (like I’ve seen in public HIGH SCHOOL algebra textbooks) Ugh!
I learned more math as I taught my kids than I ever got out of school.