I can agree with your post if, and only if, the time saved is actually used for math or other academic purposes. Unfortunately, most public schools have abandoned such subjects also. There seems to be little time for anything other than proper socialization and self-esteem polishing.
Twenty years ago as an employer I learned that a high school diploma is not a guarantee of any level of proficiency in reading, writing, mathematics, or anything else. Reading and following simple written instructions is way too much to expect. Forget about addition, subtraction, multiplication, division, converting fractions to decimals, US or world history, basic civics, or any other fundamental knowledge.